Ontology highlight
ABSTRACT:
SUBMITTER: Bouvier SE
PROVIDER: S-EPMC3129419 | biostudies-literature | 2011 Aug
REPOSITORIES: biostudies-literature
Bouvier Seth E SE Engel Stephen A SA
NeuroImage 20110414 3
To what extent does attention modulate neural activity in early visual areas? fMRI measurements of attentional modulation in primary visual cortex (V1) show large effects, while single unit recordings show much smaller ones. This discrepancy suggests that fMRI measures of attention may be inflated, perhaps by activity related to other processes. To test whether effects measured with fMRI actually reflect attentional enhancement, we used a rapid acquisition protocol to determine their timing. Sub ...[more]