Search

Your search keyword '"Sébastien Romagny"' showing total 8 results
Start Over Author "Sébastien Romagny"
8 results on '"Sébastien Romagny"'

1. Newborn rabbit perception of 6-odorant mixtures depends on configural processing and number of familiar elements.

Author

Sébastien Romagny, Thierry Thomas-Danguin, and Gérard Coureaud

Subjects
Medicine, Science
Abstract

Perception of odors, i.e. usually of mixtures of odorants, is elemental (the odorants' odor qualities are perceived in the mixture) or configural (the odor quality of the mixture differs from the one of each odorant). In human adults, the Red Cordial (RC) mixture is a configurally-processed, 6-odorant mixture. It evokes a red cordial odor quality while none of the elements carries that odor. Interestingly, in newborn rabbits, the same RC mixture is weak configurally perceived: the newborns behaviorally respond to all the elements after conditioning to the whole mixture, but not to the mixture after conditioning to a single element. Thus, they perceive in the RC mixture both the odor quality of the RC configuration and the quality of each element. Here, we aimed to determine whether this perception is modulated by quantitative (number of elements) and/or qualitative bits of information (nature of elements) previously learned by the animals. Newborns were conditioned to RC sub-mixtures of different complexity and composition before behavioral testing to RC. Pups generalized their sucking-related response to RC after learning at least 4 odorants. In contrast, after conditioning to sub-mixtures of another 6-odorant mixture, the elementally perceived MV mixture, pups responded to MV after learning one or two odorants. The different generalization to RC and MV mixtures after learning some of their elements is discussed according to three hypotheses: i) the configural perception of RC sub-mixtures, ii) the ratio of familiar/unfamiliar individual information elementally and configurally perceived, iii) the perception of RC becoming purely elemental. The results allow the first hypothesis to be dismissed, while further experiments are required to distinguish between the remaining two.

Published
2014
Full Text
View/download PDF

2. Developmental changes in elemental and configural perception of odor mixtures in young rabbits

Author

Gérard Coureaud, Sébastien Romagny, Thierry Thomas-Danguin, Chloé Letagneaux, Coureaud, Gérard, Centre de recherche en neurosciences de Lyon - Lyon Neuroscience Research Center (CRNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Regional Council of Burgundy, European Regional Development Fund, Agence Nationale de la Recherche ANR-2010-JCJC-1410-1 MEMOLAP., Centre de recherche en neurosciences de Lyon (CRNL), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), and Danone Nutricia Research

Subjects
Male, european rabbit (Oryctolagus cuniculus), genetic structures, media_common.quotation_subject, [SDV.NEU.PC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, Behavioral testing, Olfaction, Affect (psychology), 03 medical and health sciences, Behavioral Neuroscience, 0302 clinical medicine, Developmental Neuroscience, newborn, Perception, Developmental and Educational Psychology, Animals, 0501 psychology and cognitive sciences, [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Set (psychology), Postnatal day, ComputingMilieux_MISCELLANEOUS, media_common, Behavior, Animal, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, behavior, weaning, 05 social sciences, Olfactory Perception, Animals, Newborn, Odor, Odorants, Conditioning, Female, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], Rabbits, sense organs, Psychology, psychological phenomena and processes, 030217 neurology & neurosurgery, olfaction, 050104 developmental & child psychology, Developmental Biology, Cognitive psychology
Abstract

WOS:000528260100005.; International audience; Development can change the way organisms represent their environment and affect their behavior. In vision, complex stimuli are treated as the sum of their elements (elemental perception) in children or as a whole (configural perception) in adults. However, the influence of development in elemental/configural perception has never been tested in olfaction. Here we explored this issue in young rabbits, which are known to perceive during the neonatal period certain binary odor mixtures elementally and others weak configurally. Using conditioning and behavioral testing procedures, we set out six experiments evaluating the putative evolution of their odor perception between birth and weaning. Results highlighted that between postnatal days 2 and 9 the perception of an initially weak configural mixture became robust configural while that of two elemental mixtures did not. Additional switches from elemental to configural perception were observed at postnatal day 24. The use of a chemically more complex senary mixture resulted also in a shift from weak to robust configural perception between postnatal days 2 and 9. Thus, the perception of certain odor mixtures may rapidly evolve toward a more holistic mode in young rabbits, which may help simplifying their representation of the environment once out of the nest.

Published
2019
Full Text
View/download PDF

3. Impact of reducing fat, salt and sugar in commercial foods on consumer acceptability and willingness to pay in real tasting conditions: A home experiment

Author

Sébastien Romagny, Christian Salles, Emilie Ginon, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), CEREN, Centre de Recherche sur l'ENtreprise [Dijon] (CEREN), Burgundy School of Business (BSB) - Ecole Supérieure de Commerce de Dijon Bourgogne (ESC) (BSB), European Union European Union FP7 KBBE2011-5-289397 Regional Council of Burgundy FEDER (European Regional Development Fund), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), CEREN, Centre de Recherche sur l'ENtreprise [Dijon] ( CEREN ), Burgundy School of Business (BSB) - Ecole Supérieure de Commerce de Dijon Bourgogne (ESC) ( BSB ), and Salles, Christian

Subjects
0301 basic medicine, liking, Pleasantness, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, media_common.quotation_subject, hedonic scores, multiple emulsions, system, cheese, yogurt, 03 medical and health sciences, 0404 agricultural biotechnology, Willingness to pay, évaluation sensorielle, consentement à payer du consommateur, Food and Nutrition, Quality (business), fiber information, Food science, Sugar, preferences, Consumer behaviour, media_common, Mathematics, Sensory evaluation, 2. Zero hunger, Consumption (economics), 030109 nutrition & dietetics, Nutrition and Dietetics, comportement des consommateurs, Home experiment, 04 agricultural and veterinary sciences, classement, stability, 040401 food science, Reservation price, Alimentation et Nutrition, agrément, Ranking, Wine tasting, Store brand, home experiment, ranking, consumer behaviour, sensory evaluation, pleasantness, willingness to pay, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, Autre (Sciences du Vivant), expectations, Food Science
Abstract

International audience; Decreasing obesity or cardiovascular disease can be achieved by eating healthier foods with reduced contents of fat, salt and sugar. However, these ingredients have a significant impact on the sensory quality of the food products that contain these ingredients, especially cooked sausage, chorizo, dry sausage, cheese and muffins. In this study, consumer appreciation of these five commercialized products (non reformulated versions) and their respective reformulated versions with reduced contents of salt, fat and sugar was tested. An original home experiment was performed to assess consumer appreciation in natural consumption conditions. The experiment was divided into two steps that correspond to a pleasantness rating and a willingness to pay task. The two measurements were expected to yield comparable results with two aspects of consumer appreciation. Non-reformulated and reformulated versions were compared with a store brand and a trademark in a ranking task to evaluate their pleasantness positioning on the market. This latter experiment, which was conducted in a laboratory, enabled the validation of the home experiment. The results indicated that the cooked sausage reformulation did not maintain consumer appreciation and reduced its positioning on the market. For cheese and muffins, the reformulation did not affect the product pleasantness. The reformulation of dry sausage and chorizo not only maintained consumer appreciation but also increased pleasantness, which was consistent with a higher reservation price of approximately 12% compared to the other samples. For most products in this experiment, new technologies contributed to significant reduction in fat, salt or sugar whilst maintaining consumer appreciation.

Published
2017
Full Text
View/download PDF

4. Configural processing of odor mixture: does the learning of elements prevent the perception of configuration in the newborn rabbit?

Author

Thierry Thomas-Danguin, Gérard Coureaud, Sébastien Romagny, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, the Burgundy Region Council and the Fond Européen de Développement Economique et Régional, Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), and Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS )

Subjects
Male, genetic structures, representation, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, media_common.quotation_subject, Experimental and Cognitive Psychology, Olfaction, behavioral disciplines and activities, 03 medical and health sciences, Behavioral Neuroscience, 0302 clinical medicine, conditioning, Perception, Generalization (learning), Physical Stimulation, component, Conditioning, Psychological, Animals, generalization, 030304 developmental biology, media_common, 0303 health sciences, Communication, business.industry, [SHS.ANTHRO-SE]Humanities and Social Sciences/Social Anthropology and ethnology, mammary pheromone, Olfactory Perception, [ SHS.ANTHRO-SE ] Humanities and Social Sciences/Social Anthropology and ethnology, Odor, Animals, Newborn, Odorants, Facilitation, Conditioning, Female, Rabbits, Percept, business, Psychology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, 030217 neurology & neurosurgery, psychological phenomena and processes, Cognitive psychology, olfaction
Abstract

Although elemental perception of odor mixtures allows us to perceive the component odor qualities, configural perception leads to the emergence of a new odor percept. The 6-odorant Red Cordial (RC) mixture is weak configurally perceived in newborn rabbits, meaning that pups respond to the odorants after conditioning to the mixture but cannot generalize to the mixture after conditioning to a single odorant. They need to know more than 50% of the elements to respond to the mixture. This suggests that their responsiveness to RC depends on the familiar vs. unfamiliar bits of information that they perceive in it. To go further, we tested the complementary hypothesis that after learning 4 or 5 odorants, the configural perception disappears, allowing pure elemental perception of the whole mixture. In Exp. 1, repeated conditionings to RC decreased the pups' responsiveness to the odorants, i.e., facilitated RC configural perception. In Exp. 2, pups were first conditioned to a sub-mixture of 4 or 5 RC elements and then repeatedly conditioned to RC to determine whether early elemental learning reduced the facilitation of RC configural perception. As pups weakly responded to the RC mixture components, the early conditioning did not prevent this facilitation. In Exp. 3, after daily conditioning to the sub-mixture and then to the whole mixture, the configural perception of RC remained unaffected. The present results confirm that rabbit pups respond to the configural RC mixture according to the perceived ratio of familiar/unfamiliar cues and highlight that the perception of the RC configuration resists the previous acquisition of elements that compose the mixture.

Published
2014
Full Text
View/download PDF

5. Newborn Rabbit Perception of 6-Odorant Mixtures Depends on Configural Processing and Number of Familiar Elements

Author

Gérard Coureaud, Sébastien Romagny, Thierry Thomas-Danguin, Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Burgundy Region council, Fond Européen de Développement Economique, and the ANR-2010-JCJC- 1410-1 MEMOLAP to GC and TTD. SR was funded by the French Ministry of Higher Education and Research, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), and Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS)

Subjects
Male, [ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition, lcsh:Medicine, [ SCCO.PSYC ] Cognitive science/Psychology, perception, Behavioral Ecology, Behavioral Neuroscience, 0302 clinical medicine, Cognition, Learning and Memory, Conditioning, Psychological, conditioned response, lcsh:Science, media_common, Multidisciplinary, Ecology, Chemistry, musculoskeletal, neural, and ocular physiology, 05 social sciences, Smell, Alimentation et Nutrition, [SCCO.PSYC]Cognitive science/Psychology, Sensory Perception, Female, behavioral conditioning, Rabbits, Human learning, psychological phenomena and processes, Research Article, media_common.quotation_subject, Cognitive Neuroscience, Decision Making, Behavioral testing, Single element, Complex Mixtures, 050105 experimental psychology, 03 medical and health sciences, Motor Reactions, Psychologie (Sciences cognitives), Sensory Cues, Generalization (learning), Perception, Food and Nutrition, chemical elements, Learning, Animals, 0501 psychology and cognitive sciences, Conditioning (Psychology), Chemical Ecology, business.industry, human learning, learning, odorants, lcsh:R, Ecology and Environmental Sciences, Cognitive Psychology, Biology and Life Sciences, Neonates, Pattern recognition, Olfactory Perception, Animal Cognition, Odor, Animals, Newborn, Odorants, Conditioning, Cognitive Science, lcsh:Q, Artificial intelligence, business, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, 030217 neurology & neurosurgery, Developmental Biology, Neuroscience
Abstract

Perception of odors, i.e. usually of mixtures of odorants, is elemental (the odorants' odor qualities are perceived in the mixture) or configural (the odor quality of the mixture differs from the one of each odorant). In human adults, the Red Cordial (RC) mixture is a configurally-processed, 6-odorant mixture. It evokes a red cordial odor quality while none of the elements carries that odor. Interestingly, in newborn rabbits, the same RC mixture is weak configurally perceived: the newborns behaviorally respond to all the elements after conditioning to the whole mixture, but not to the mixture after conditioning to a single element. Thus, they perceive in the RC mixture both the odor quality of the RC configuration and the quality of each element. Here, we aimed to determine whether this perception is modulated by quantitative (number of elements) and/or qualitative bits of information (nature of elements) previously learned by the animals. Newborns were conditioned to RC sub-mixtures of different complexity and composition before behavioral testing to RC. Pups generalized their sucking-related response to RC after learning at least 4 odorants. In contrast, after conditioning to sub-mixtures of another 6-odorant mixture, the elementally perceived MV mixture, pups responded to MV after learning one or two odorants. The different generalization to RC and MV mixtures after learning some of their elements is discussed according to three hypotheses: i) the configural perception of RC sub-mixtures, ii) the ratio of familiar/unfamiliar individual information elementally and configurally perceived, iii) the perception of RC becoming purely elemental. The results allow the first hypothesis to be dismissed, while further experiments are required to distinguish between the remaining two.

Published
2014
Full Text
View/download PDF

6. Cerebral correlates of visual lateralization in Sepia

Author

Christelle Jozet-Alves, Cécile Bellanger, Sébastien Romagny, Ludovic Dickel, Groupe Mémoire et Plasticité comportementale (GMPc), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Groupe Mémoire et Plasticité comportementale ( GMPc ), Université de Caen Normandie ( UNICAEN ), and Normandie Université ( NU ) -Normandie Université ( NU )

Subjects
Cuttlefish, Aging, Serotonin, Cephalopods, Sepia, Dopamine, Population, Lateralization of brain function, Functional Laterality, 03 medical and health sciences, Behavioral Neuroscience, Norepinephrine, 0302 clinical medicine, medicine, Brain asymmetry, Animals, education, 030304 developmental biology, 0303 health sciences, education.field_of_study, Lateralization, biology, Behavior, Animal, [SCCO.NEUR]Cognitive science/Neuroscience, Optic Lobe, Nonmammalian, Brain, Side-turning preference, Anatomy, biology.organism_classification, Lobe, Cephalopod, Ontogenesis, Monoamine neurotransmitter, medicine.anatomical_structure, [ SCCO.NEUR ] Cognitive science/Neuroscience, Neuroscience, 030217 neurology & neurosurgery
Abstract

International audience; The common cuttlefish, Sepia officinalis (cephalopod mollusc) has recently become a relevant model for studying the setting-up of brain asymmetry among invertebrates. As the animals age from 3 to 30 days post hatching, they progressively develop a left-turning bias resulting from an eye-use preference. The aim of this study is to investigate whether anatomical (vertical, peduncle, inferior buccal, and optic lobes) or neurochemical (monoamines in optic lobes) brain asymmetries are present in the cuttlefish brain at 3 or at 30 post hatching days; and whether these correlate with side-turning preferences. We here find brain and behavioral asymmetry only at 30 post hatching days. Cuttlefish displayed a significant population bias towards a larger right peduncle lobe, and higher monoamine concentration in the left optic lobe (i.e. serotonin, dopamine and noradrenaline). None of these brain asymmetries were correlated to the studied side-turning bias. However, we found individual variation in the magnitude of the vertical and optic lobes asymmetry. A striking correlation was found with the behavioral results: the larger the right optic lobe and the right part of the vertical lobe, the stronger the bias to turn leftwards. To our knowledge, this is the first study to demonstrate a relationship at the individual level between brain and behavioral asymmetries in invertebrates.

Published
2012
Full Text
View/download PDF

7. Visual lateralization is task and age dependent in cuttlefish, Sepia officinalis

Author

Christelle Jozet-Alves, Matthieu Dacher, Susan D. Healy, Vincent A. Viblanc, Sébastien Romagny, Ludovic Dickel, Groupe Mémoire et Plasticité comportementale (GMPc), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Département Ecologie, Physiologie et Ethologie (DEPE-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherches sur la Cognition Animale - UMR5169 (CRCA), Institut des sciences du cerveau de Toulouse. (ISCT), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre de Biologie Intégrative (CBI), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), School of Psychology, University of St Andrews [Scotland], Fyssen Foundation, Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), Centre de Recherches sur la Cognition Animale (CRCA), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Groupe Mémoire et Plasticité comportementale ( GMPc ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ), Département Ecologie, Physiologie et Ethologie ( DEPE-IPHC ), Institut Pluridisciplinaire Hubert Curien ( IPHC ), Université de Strasbourg ( UNISTRA ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Strasbourg ( UNISTRA ) -Centre National de la Recherche Scientifique ( CNRS ), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Centre de Recherches sur la Cognition Animale [Toulouse] ( CRCA ), Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Centre de Biologie Intégrative (CBI), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut des sciences du cerveau de Toulouse. (ISCT), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0106 biological sciences, Cuttlefish, cuttlefish, invertebrate, Zoology, visual lateralization, Stimulus (physiology), Sepia officinalis, 010603 evolutionary biology, 01 natural sciences, Lateralization of brain function, 03 medical and health sciences, 0302 clinical medicine, Juvenile, Sepia, cephalopod, development, Ecology, Evolution, Behavior and Systematics, biology, Ecology, [SCCO.NEUR]Cognitive science/Neuroscience, biology.organism_classification, Cephalopod, Visual field, [ SCCO.NEUR ] Cognitive science/Neuroscience, Biological dispersal, Animal Science and Zoology, 030217 neurology & neurosurgery, side-turning preference
Abstract

International audience; The behavioural lateralization observed in several invertebrate species appears to parallel the phenomenon seen in vertebrates. However, it is not yet clear whether lateralization in invertebrates varies within an individual across development as it does in vertebrates. We examined when during postembryonic development juvenile cuttlefish begin to show side-turning preferences in a T-shaped apparatus. We also determined whether or not the direction of turning was stimulus dependent by providing, or not providing, shelters in the two choice arms of the apparatus. We found that as the animals aged from 3 to 45 days posthatch they progressively developed a left-turning bias but only when shelters were provided in the apparatus. We suggest that left-turning biases in cuttlefish result from an eye use preference. Emergence of visual lateralization at the time of dispersal may afford juveniles greater behavioural efficiency by enabling them to look out for escape routes while hunting. The left visual field may be associated with rapid responses as in many species of vertebrates. Determining the role of the right visual field of cuttlefish when looking for prey may provide evidence for homology between lateralization in invertebrates and vertebrates.

Published
2012
Full Text
View/download PDF

8. Feel, smell and see in an egg: emergence of perception and learning in an immature invertebrate, the cuttlefish embryo

Author

Ludovic Dickel, Cécile Bellanger, Anne-Sophie Darmaillacq, Sébastien Romagny, Mathieu Guibé, Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Groupe Mémoire et Plasticité comportementale (GMPc), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Centre National de la Recherche Scientifique (CNRS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB), French Ministry of Education and Research (MESR), Centre des Sciences du Goût et de l'Alimentation [Dijon] ( CSGA ), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Groupe Mémoire et Plasticité comportementale ( GMPc ), Université de Caen Normandie ( UNICAEN ), and Normandie Université ( NU ) -Normandie Université ( NU )

Subjects
Cuttlefish, Embryo, Nonmammalian, Sepia, animal structures, cuttlefish, Sensory development, genetic structures, [ SDV.BA.ZI ] Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Physiology, media_common.quotation_subject, Sensory system, Aquatic Science, Biology, Stimulus (physiology), Motor Activity, In ovo, 03 medical and health sciences, 0302 clinical medicine, Rhythm, Memory, Perception, Animals, Learning, [ SDV.BDD ] Life Sciences [q-bio]/Development Biology, Habituation, Mantle (mollusc), Habituation, Psychophysiologic, Molecular Biology, [SDV.BDD]Life Sciences [q-bio]/Development Biology, Ecology, Evolution, Behavior and Systematics, 030304 developmental biology, media_common, 0303 health sciences, Communication, business.industry, [SCCO.NEUR]Cognitive science/Neuroscience, Olfactory Perception, habituation, [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology, Touch Perception, Embryo, Insect Science, [ SCCO.NEUR ] Cognitive science/Neuroscience, embryonic structures, Visual Perception, Animal Science and Zoology, business, Neuroscience, 030217 neurology & neurosurgery
Abstract

SUMMARYIt is now well established that prenatal sensory experience affects development itself and has long-term consequences in terms of postnatal behavior. This study focused on the functionality of the sensory system in cuttlefish in ovo. Embryos of stage 23, 25 and 30 received a tactile, chemical or visual stimulus. An increase of mantle contraction rhythm was taken to indicate a behavioral response to the stimulus. We clearly demonstrated that tactile and chemical systems are functional from stage 23, whereas the visual system is functional only from stage 25. At stage 25 and 30, embryos were also exposed to a repeated light stimulus. Stage 30 embryos were capable of habituation, showing a progressive decrease in contractions across stimulations. This process was not due to fatigue as we observed response recovery after a dishabituation tactile stimulus. This study is the first to show that cuttlefish embryos behaviorally respond to stimuli of different modalities and that the visual system is the last to become functional during embryonic development, as in vertebrate embryos. It also provides new evidence that the memory system develops in ovo in cuttlefish.

Published
2012
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results