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Activation of V4 and VO1 areas during retrieving of color and shape information from visual working memoryстатья Тезисы
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Rogachev A., Kozlovskiy S., Vartanov A., Marakshina J., Kiselnikov A.
- Журнал: Psychophysiology
- Том: 56
- Номер: S1
- Год издания: 2019
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- Первая страница: S59
- Последняя страница: S59
- DOI: 10.1111/psyp.13502
- Аннотация: The role of human visual cortex in retrieving of color and shape information from visual working memory was studied. Participants (N=22, mean age=19.6, SD=1.8, 13 females) were being presented with a picture of the color blot (8 different shapes and 9 colors) for 400 ms time period. After a delay of 900 ms the matrix of 4 different color blots was presented for 900 ms. The instruction was to recognize the stimulus. The experiment consisted of 3 series. Participants were asked to remember either color or shape, or both. Stimuli were presented 100 times in each series. A 19-channels EEG was recorded and visual evoked potentials were calculated for each stimulus in all trials. To reveal sources of activation in 25 visual cortex areas (Wang et. al, 2015) in each hemisphere the dSPM algorithm (Dale, 2000) and Brainstorm software (Tadel, 2011) were used. Activation of left and right hV4 areas of visual cortex was revealed in all tests requiring color information retrieval after 200 ms from the start of the blot matrix presentation. This type of activation was not found in any other series. Activation of VO1 area (anterior to V4) in both hemispheres was also presented during shape recognition after 200 ms from the stimulus onset. This type of activation was absent at the same latency in other series. We suggest that color and shape characteristics of visual image are processed independently in working memory in areas hV4 and VO1, respectively. The research was financially supported by the Russian Science Foundation, project No 19-18-00474
- Добавил в систему: Рогачёв Антон Олегович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | spr_2019.pdf | 447,0 КБ | 14 сентября 2019 [aorogachev] |