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TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20310309T030000 RDATE:20311102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20320314T030000 RDATE:20321107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20330313T030000 RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20350311T030000 RDATE:20351104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20360309T030000 RDATE:20361102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20370308T030000 RDATE:20371101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:38a512aa2ecfe2be7c5c863421d4adfd CATEGORIES:Human and computer vision series:Fall 2007 CREATED:20151203T141541 SUMMARY:Task-specific computations in attentional maps LOCATION:Columbia University\, Center for Neurobiology and Behavior DESCRIPTION:
Research on the neural substrates of attention has
traditionally
concentrated on the way in which attention affects sensory
representations, in particular visual representations in
extrastriat
e cortex. Much less is known about the neural mechanisms
that generate t
he attentional-control signal itself: where are
decisions made about how
to allocate attention in a given
circumstance, and what are the underly
ing mechanisms? I will
discuss some possible answers to these questions
based on our work
in monkey lateral intraparietal area (LIP). Our result
s suggest
that LIP provides a priority map that encodes the locations of
attention-worthy objects and guides the deployment of attention in
a
wide variety of tasks. However, this map is not invariant but is
shaped
by multiple motor, cognitive and motivational task-relevant
variables.
This suggests that LIP may be important for allocating
attention based o
n multiple simultaneous task demands. I will
discuss the broader implica
tions of these findings for the neural
mechanisms of attention and for c
omputational models of attention
and decision-making.
Back ground Reading:
Gottlieb J. From
thought to action: the parietal cortex as a bridge
between perception, a
ction, and cognition. Neuron. 2007 Jan
4;53(1):9-16. Review.
O
ristaglio J, Schneider DM, Balan PF, Gottlieb J. Integration of
vi
suospatial and effector information during symbolically cued limb
moveme
nts in monkey lateral intraparietal area. J Neurosci. 2006 Aug
9;26(32):
8310-9.