Spatio-temporal dynamics of working memory maintenance and scanning of verbal information.

ABSTRACT:

Objective

During verbal communication, humans briefly maintain mental representations of speech sounds conveying verbal information, and constantly scan these representations for comparison to incoming information. We determined the spatio-temporal dynamics of such short-term maintenance and subsequent scanning of verbal information, by intracranially measuring high-gamma activity at 70-110Hz during a working memory task.

Methods

Patients listened to a stimulus set of two or four spoken letters and were instructed to remember those letters over a two-second interval, following which they were asked to determine if a subsequent target letter had been presented earlier in that trial's stimulus set.

Results

Auditory presentation of letter stimuli sequentially elicited hi

SUBMITTER: Kambara T 

PROVIDER: S-EPMC5429980 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature