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2 results on '"temporo-parietal junctions"'

1. Pre-Stimulus Activity of Left and Right TPJ in Linguistic Predictive Processing: A MEG Study.

Author

Lago, Sara, Zago, Sara, Bambini, Valentina, and Arcara, Giorgio

Subjects
*TEMPORAL lobe, *LARGE-scale brain networks, *THEORY of mind, *TEMPOROPARIETAL junction, *FIGURES of speech
Abstract

Background. The left and right temporoparietal junctions (TPJs) are two brain areas involved in several brain networks, largely studied for their diverse roles, from attentional orientation to theory of mind and, recently, predictive processing. In predictive processing, one crucial concept is prior precision, that is, the reliability of the predictions of incoming stimuli. This has been linked with modulations of alpha power as measured with electrophysiological techniques, but TPJs have seldom been studied in this framework. Methods. The present article investigates, using magnetoencephalography, whether spontaneous oscillations in pre-stimulus alpha power in the left and right TPJs can modulate brain responses during a linguistic task that requires predictive processing in literal and non-literal sentences. Results. Overall, results show that pre-stimulus alpha power in the rTPJ was associated with post-stimulus responses only in the left superior temporal gyrus, while lTPJ pre-stimulus alpha power was associated with post-stimulus activity in Broca's area, left middle temporal gyrus, and left superior temporal gyrus. Conclusions. We conclude that both the right and left TPJs have a role in linguistic prediction, involving a network of core language regions, with differences across brain areas and linguistic conditions that can be parsimoniously explained in the context of predictive processing. [ABSTRACT FROM AUTHOR]

Published
2024
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2. The intentional network: how the brain reads varieties of intentions

Author

Susanne Erk, Mauro Adenzato, Lorenzo Pia, Angela Ciaramidaro, Henrik Walter, Bruno G. Bara, and Ivan Enrici

Subjects
Social Cognition, Adult, Male, Communicative intention, fMRI, Medial prefrontal cortex, Social cognition, Temporo-parietal junction, Theory of Mind, Analysis of Variance, Comprehension, Female, Humans, Magnetic Resonance Imaging, Models, Neurological, Nerve Net, Parietal Lobe, Prefrontal Cortex, Psychological Theory, Reference Values, Temporal Lobe, Brain Mapping, Intention, Social Perception, Behavioral Neuroscience, Neuropsychology and Physiological Psychology, Cognitive Neuroscience, Precuneus, Experimental and Cognitive Psychology, Social neuroscience, Models, Theory of mind, Medial Prefrontal Cortex, medicine, Prefrontal cortex, Communicative Intention, Neural correlates of consciousness, Social perception, Temporo-Parietal Junctions, Social relation, medicine.anatomical_structure, Neurological, Psychology, Cognitive psychology
Abstract

Social neuroscience provides insights into the neural correlates of the human capacity to explain and predict other people's intentions, a capacity that lies at the core of the Theory of Mind (ToM) mechanism. Results from neuroimaging research describe a widely distributed neural system underlying ToM, including the right and left temporo-parietal junctions (TPJ), the precuneus, and the medial prefrontal cortex (MPFC). Nevertheless, there is disagreement in the literature concerning the key region for the ToM network. Some authors point to the MPFC, others to the right TPJ. In the effort to make a contribution to the debate, we propose a model of a dynamic ToM network consisting of four regions. We also introduce a novel theoretical distinction among varieties of intention, which differ by the nature of an individual's pursued goal (private or social) and by the social interaction's temporal dimension (present or future). Our results confirm the crucial role of both the MPFC and the right TPJ, but show that these areas are differentially engaged depending on the nature of the intention involved. Whereas the right TPJ and the precuneus are necessary for processing all types of prior intentions, the left TPJ and the anterior paracingulate cortex are specifically involved in the understanding of social intention. More specifically, the left TPJ is activated only when a subset of social intentions are involved (communicative intentions). Taken together, these results demonstrate the progressive recruitment of the ToM network along the theoretical dimensions introduced in the present paper.

Published
2006

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