The role of early visual cortex in visual short-term memory and visual attention Export

@article{Offen2008Role, abstract = {We measured cortical activity with functional magnetic resonance imaging to probe the involvement of early visual cortex in visual short-term memory and visual attention. In four experimental tasks, human subjects viewed two visual stimuli separated by a variable delay period. The tasks placed differential demands on short-term memory and attention, but the stimuli were visually identical until after the delay period. Early visual cortex exhibited sustained responses throughout the delay when subjects performed attention-demanding tasks, but delay-period activity was not distinguishable from zero when subjects performed a task that required short-term memory. This dissociation reveals different computational mechanisms underlying the two processes.}, author = {Offen, S.}, citeulike-article-id = {4721828}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.visres.2007.12.022}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0042698908000151}, day = {07}, doi = {10.1016/j.visres.2007.12.022}, issn = {00426989}, journal = {Vision Research}, keywords = {attention, fmri, v1, v2, vstm}, month = {March}, posted-at = {2009-06-02 18:47:37}, priority = {3}, title = {The role of early visual cortex in visual short-term memory and visual attention}, url = {http://dx.doi.org/10.1016/j.visres.2007.12.022}, year = {2008} }

TY - JOUR ID - Offen2008Role L3 - citeulike-article-id:4721828 N2 - We measured cortical activity with functional magnetic resonance imaging to probe the involvement of early visual cortex in visual short-term memory and visual attention. In four experimental tasks, human subjects viewed two visual stimuli separated by a variable delay period. The tasks placed differential demands on short-term memory and attention, but the stimuli were visually identical until after the delay period. Early visual cortex exhibited sustained responses throughout the delay when subjects performed attention-demanding tasks, but delay-period activity was not distinguishable from zero when subjects performed a task that required short-term memory. This dissociation reveals different computational mechanisms underlying the two processes. JF - Vision Research SN - 00426989 TI - The role of early visual cortex in visual short-term memory and visual attention KW - attention KW - fmri KW - v1 KW - v2 KW - vstm AU - Offen, S PY - 2008/March/07/ UR - http://dx.doi.org/10.1016/j.visres.2007.12.022 ER -