Intracranial recordings show evidence of numerosity tuning in human parietal cortex.

Autor: van Dijk JA; Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands.; Experimental Psychology, Utrecht University, Utrecht, The Netherlands., de Jong MC; Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands.; Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands.; Amsterdam Brain and Cognition (ABC), University of Amsterdam, Amsterdam, The Netherlands., Piantoni G; Radiology Department, Imaging Division, Center for Image Sciences, University Medical Center Utrecht, The Netherlands., Fracasso A; Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands.; Radiology Department, Imaging Division, Center for Image Sciences, University Medical Center Utrecht, The Netherlands.; Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom., Vansteensel MJ; UMC Utrecht Brain Center, Department Neurology and Neurosurgery, UMC Utrecht, Utrecht, The Netherlands., Groen IIA; Informatics Institute, University of Amsterdam, Amsterdam, The Netherlands.; Department of Psychology, New York University, New York, United States of America., Petridou N; Radiology Department, Imaging Division, Center for Image Sciences, University Medical Center Utrecht, The Netherlands., Dumoulin SO; Spinoza Centre for Neuroimaging, Amsterdam, The Netherlands.; Experimental Psychology, Utrecht University, Utrecht, The Netherlands.; Experimental and Applied Psychology, VU University, Amsterdam, The Netherlands.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2022 Aug 03; Vol. 17 (8), pp. e0272087. Date of Electronic Publication: 2022 Aug 03 (Print Publication: 2022).
DOI: 10.1371/journal.pone.0272087
Abstrakt: Numerosity is the set size of a group of items. Numerosity perception is a trait shared across numerous species. Numerosity-selective neural populations are thought to underlie numerosity perception. These neurons have been identified primarily using electrical recordings in animal models and blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) in humans. Here we use electrical intracranial recordings to investigate numerosity tuning in humans, focusing on high-frequency transient activations. These recordings combine a high spatial and temporal resolution and can bridge the gap between animal models and human recordings. In line with previous studies, we find numerosity-tuned responses at parietal sites in two out of three participants. Neuronal populations at these locations did not respond to other visual stimuli, i.e. faces, houses, and letters, in contrast to several occipital sites. Our findings further corroborate the specificity of numerosity tuning of in parietal cortex, and further link fMRI results and electrophysiological recordings.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
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