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15 results on '"Corpus callosum -- Physiological aspects"'

1. Bilateral optic nerve aplasia with corpus callosum hypogenesis in an otherwise healthy child: Report of a rare case

Author

Rajan, Renu, Deb, Amit, Kannan, Naresh, and Ramasamy, Kim

Subjects
Corpus callosum -- Physiological aspects, Optic nerve diseases -- Diagnosis -- Case studies, Magnetic resonance imaging -- Usage, Genetic disorders, Ganglion cysts, Health
Abstract

Byline: Renu. Rajan, Amit. Deb, Naresh. Kannan, Kim. Ramasamy Optic nerve (ON) aplasia is a rare congenital anomaly. It is characterised by the absence of optic nerve, nerve fibre layer, [...]

Published
2019

2. Psychological correlates of handedness and corpus callosum asymmetry in autism: the left hemisphere dysfunction theory revisited

Author

Floris, Dorothea L., Chura, Lindsay R., Holt, Rosemary J., Suckling, John, Bullmore, Edward T., Baron-Cohen, Simon, and Spencer, Michael D.

Subjects
Left- and right-handedness -- Physiological aspects, Neuroanatomy -- Research, Neurological research, Cerebral dominance -- Research, Corpus callosum -- Physiological aspects, Autism -- Psychological aspects, Health
Abstract

Rightward cerebral lateralization has been suggested to be involved in the neuropathology of autism spectrum conditions. We investigated functional and neuroanatomical asymmetry, in terms of handedness and corpus callosum measurements in male adolescents with autism, their unaffected siblings and controls, and their associations with executive dysfunction and symptom severity. Adolescents with autism did not differ from controls in functional asymmetry, but neuroanatomically showed the expected pattern of stronger rightward lateralization in the posterior and anterior midbody based on their hand-preference. Measures of symptom severity were related to rightward asymmetry in three subregions (splenium, posterior midbody and rostral body). We found the opposite pattern for the isthmus and rostrum with better cognitive and less severe clinical scores associated with rightward lateralization. Keywords Autism * Corpus callosum * Handedness * Asymmetry * Lateralization * Broader autism phenotype, Introduction The neuroanatomical underpinnings of autism spectrum conditions (ASC) are still poorly understood, but theories surrounding atypical cerebral asymmetry as one possible factor influencing the condition have received considerable attention. [...]

Published
2013
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3. Diffusion tensor imaging in MDMA users and controls: association with decision making

Author

Moeller, F. Gerard, Steinberg, Joel L., Lane, Scott D., Buzby, Matthew, Swann, Alan C., Hasan, Khader M., Kramer, Larry A., and Narayana, Ponnada A.

Subjects
Ecstasy (Drug) -- Physiological aspects, Ecstasy (Drug) -- Research, Decision-making -- Physiological aspects, Decision-making -- Research, Impulse -- Physiological aspects, Impulse -- Research, Corpus callosum -- Medical examination, Corpus callosum -- Physiological aspects, Health, Psychology and mental health
Published
2007

4. Corpus callosum atrophy is associated with mental slowing and executive deficits in subjects with age-related white matter hyperintensities: the LADIS Study

Author

Jokinen, Hanna, Ryberg, Charlotte, Kalska, Hely, Ylikoski, Raija, Rostrup, Egill, Stegmann, Mikkel B., Waldemar, Gunhild, Madureira, Sofia, Ferro, Jose M., van Straaten, Elizabeth C.W., Scheltens, Philip, Barkhof, Frederik, Fazekas, Franz, Schmidt, Reinhold, Carlucci, Giovanna, Pantoni, Leonardo, Inzitari, Domenico, and Erkinjuntti, Timo

Subjects
Corpus callosum -- Physiological aspects, Cognition disorders -- Development and progression, Cognition disorders -- Research, Health, Psychology and mental health
Published
2007

6. Relative size versus controlling for size: interpretation of ratios in research on sexual dimorphism in the human corpus callosum

Author

Smith, Richard J., Aboitiz, Francisco, Schroter, Carolina, Barton, Robert, Denenberg, Victor H., Fitch, R. Holly, Finlay, Barbara L., Holloway, Ralph, Jungers, William L., Wahlsten, Douglas, and Bishop, Katherine M.

Subjects
Corpus callosum -- Physiological aspects, Corpus callosum -- Demographic aspects, Dimorphism (Biology) -- Research, Brain -- Size, Brain -- Demographic aspects
Published
2005

8. Sex and handedness effects on corpus callosum morphology in chimpanzees (Pan troglodytes)

Author

Dunham, Leslie A. and Hopkins, William D.

Subjects
Corpus callosum -- Physiological aspects, Health, Psychology and mental health
Abstract

Findings suggest that in humans, sex and hand preference may be associated with the size of the corpus callosum (CC). The authors measured CC morphology from MRIs in 67 chimpanzees (Pan troglodytes) to see whether similar effects were present in this species. Hand preference was assessed by performance on 4 tasks, and chimpanzees were classified as left-handed, right-handed, or ambidextrous. In a subsequent analysis, the chimpanzees were reclassified into 2 groups: right-handed and left-handed. The results revealed no sex difference in CC area, but significant effects of hand preference were found for several CC regions (rostrum body, anterior midbody, posterior midbody, isthmus, and splenium) and for overall CC size, with left-handed chimpanzees exhibiting significantly smaller CC measurements than right-handed chimpanzees. The results indicate that lateralized hand use in chimpanzees, as in humans, is associated with variation in CC size. Keywords: Pan troglodytes, corpus callosum, handedness

Published
2006

9. Hemisplenial- accompanied by internal border-zone infarction: clinical relevance of the splenium of the corpus callosum as a border-zone area between anterior and posterior cerebral arteries

Author

Hashiguchi, Akihito, Yano, Shigetoshi, Nitta, Kazumi, Ide, Wataru, Hashimoto, Ikuo, Kamada, Hajime, and Kuratsu, Jun-ichi

Subjects
Corpus callosum -- Research, Corpus callosum -- Physiological aspects, Cerebral arteries -- Research, Cerebral arteries -- Physiological aspects, Brain -- Infarction, Brain -- Diagnosis, Brain -- Case studies, Brain -- Physiological aspects, Health, Psychology and mental health
Published
2010

10. Bright splenium of a psychotic mind

Author

Udaya, Shankar, Chauhan, Bhumir, and Philip, Vivek

Subjects
Corpus callosum -- Physiological aspects, Postpartum psychosis -- Case studies, Brain mapping -- Case studies, Psychotic disorders -- Case studies, Health
Abstract

Byline: Shankar. Udaya, Bhumir. Chauhan, Vivek. Philip A twenty-one-year old primigravida presented two weeks postpartum with new onset of behavioral alteration and irrelevant talking without fever, headache, or seizures. Magnetic [...]

Published
2015

11. Morphometry of the corpus callosum in patients with questionable and mild dementia. (Short Report)

Author

Hensel, A., Wolf, H., Kruggel, F., Riedel-Heller, S.G., Nikolaus, C., Arendt, T., and Gertz, H.J.

Subjects
Brain -- Physiological aspects, Atrophy -- Physiological aspects -- Complications and side effects, Calcification -- Physiological aspects, Alzheimer's disease -- Complications and side effects, Corpus callosum -- Physiological aspects, Health, Psychology and mental health, Physiological aspects, Complications and side effects
Abstract

Previous studies have shown a reduction in corpus callosum area in advanced Alzheimer's disease, but it is unclear whether callosal atrophy is present in the transitional phase between health and [...]

Published
2002

12. Corpus callosum infarct associated with combined variants in circle of willis

Author

Andreadou, Elisabeth, Papadimas, George, Sifakis, Nikolaos, and Sfagos, Constantinos

Subjects
Circle of Willis -- Physiological aspects, Brain -- Infarction, Corpus callosum -- Physiological aspects, Health
Abstract

Byline: Elisabeth. Andreadou, George. Papadimas, Nikolaos. Sifakis, Constantinos. Sfagos Sir, A 46-year-old right-handed woman presented with a 3-week history of episodic failure to maintain right upper limb movement while performing [...]

Published
2010

14. Left hemianomia of musical symbols caused by callosal infarction

Author

Satoh, M., Furukawa, K., Takeda, K., and Kuzuhara, S.

Subjects
Infarction -- Case studies, Symbolism -- Analysis, Symbolism -- Physiological aspects, Corpus callosum -- Physiological aspects, Corpus callosum -- Case studies, Health, Psychology and mental health
Published
2006

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