Posterior cingulate cortex and the recognition of highly abstract visual stimuliстатья Тезисы

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Дата последнего поиска статьи во внешних источниках: 10 октября 2019 г.

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[1] Posterior cingulate cortex and the recognition of highly abstract visual stimuli / B. B. Velichkovsky, S. Kozlovskiy, A. Rogachev et al. // Perception. — 2019. — Vol. 48, no. S1. — P. 13–13. The participants (N=17, 11 females, mean age =19.5 ± 2.0 years) viewed single-colored highly abstract blots as stimuli (presentation time 400 milliseconds, eight different forms, and nine colors) and remembered them. After a 900-millisecond pause, they viewed a 2x2 matrix of four similar stimuli and had to recognize the previously shown blot. There were three sessions which differed by the feature that was remembered/recognized (1: form; 2: color, and 3: color and form). Visual event-related potentials were averaged for the matrix presentation, and sources of brain activity during recognition were computed using the dynamic statistical parameter mapping algorithm. Brain activity was similar for all the sessions, except for the high activation of the posterior cingulate cortex bilaterally (300 milliseconds from the matrix) which was only observed for the form recognition sessions (1 and 3). These data suggest a specific involvement of posterior cingulate cortex in the visual recognition memory for highly abstract stimuli. This research was supported by Russian Foundation for Basic Research, grant # 16–06-00065. [ DOI ]

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