Auditory Target Detection Enhances Visual Processing and Hippocampal Functional Connectivity.

ABSTRACT: Though dividing one's attention between two input streams typically impairs performance, detecting a behaviorally relevant stimulus can sometimes enhance the encoding of unrelated information presented at the same time. Previous research has shown that selection of this kind boosts visual cortical activity and memory for concurrent items. An important unanswered question is whether such effects are reflected in processing quality and functional connectivity in visual regions and in the hippocampus. In this fMRI study, participants were asked to memorize a stream of naturalistic images and press a button only when they heard a predefined target tone (400 or 1,200 Hz, counterbalanced). Images could be presented with a target tone, with a distractor tone, or without a tone. Auditory target de

SUBMITTER: Moyal R 

PROVIDER: S-EPMC9234495 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature