How Task Set and Task Switching Modulate Perceptual Processes: Is Recognition of Facial Emotion an Exception?

ABSTRACT: In Part 1 we review task-switching and other studies showing that, even with time for preparation, participants' ability to shift attention to a relevant attribute or object before the stimulus onset is limited: there is a 'residual cost'. In particular, several brain potential markers of perceptual encoding are delayed on task-switch trials, compared to task-repeat trials that require attention to the same attribute as before. Such effects have been documented even for a process often considered 'automatic' - visual word recognition: ERP markers of word frequency and word/nonword status are (1) delayed when the word recognition task follows a judgement of a perceptual property compared to repeating the lexical task, and (2) strongly attenuated during the perceptual judgements. Thus, even

SUBMITTER: Elchlepp H 

PROVIDER: S-EPMC8344960 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature