Reactivating and reorganizing activity-silent working memory: two distinct mechanisms underlying pinging the brain DOI
Can Yang, Xianhui He, Ying Cai

et al.

Cerebral Cortex, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Recent studies have proposed that visual information in working memory (WM) can be maintained an activity-silent state and reactivated by task-irrelevant high-contrast impulses ("ping"). Although pinging the brain has become a popular tool for exploring WM, its underlying mechanisms remain unclear. In current study, we directly compared neural reactivation effects behavioral consequences of spatial-nonmatching spatial-matching pings to distinguish noise-reduction target-interaction hypotheses brain. Initially, electroencephalogram our decoding results showed WM transiently without changing original representations or recall performance. Conversely, more durably further reorganized decreasing representations' dynamics. Notably, only strength correlated with performance was modulated location memorized items, occurring when both items were presented horizontally. Consistently, follow-up found spatial-matching, horizontal impaired no ping. Together, demonstrated two distinct brain, highlighting critical role ping's context (i.e. spatial information) reactivating reorganizing WM.

Language: Английский

Reactivating and reorganizing activity-silent working memory: two distinct mechanisms underlying pinging the brain DOI
Can Yang, Xianhui He, Ying Cai

et al.

Cerebral Cortex, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Recent studies have proposed that visual information in working memory (WM) can be maintained an activity-silent state and reactivated by task-irrelevant high-contrast impulses ("ping"). Although pinging the brain has become a popular tool for exploring WM, its underlying mechanisms remain unclear. In current study, we directly compared neural reactivation effects behavioral consequences of spatial-nonmatching spatial-matching pings to distinguish noise-reduction target-interaction hypotheses brain. Initially, electroencephalogram our decoding results showed WM transiently without changing original representations or recall performance. Conversely, more durably further reorganized decreasing representations' dynamics. Notably, only strength correlated with performance was modulated location memorized items, occurring when both items were presented horizontally. Consistently, follow-up found spatial-matching, horizontal impaired no ping. Together, demonstrated two distinct brain, highlighting critical role ping's context (i.e. spatial information) reactivating reorganizing WM.

Language: Английский

Citations

0