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that receive an increased attentional signal from the FEF on microstimula-
 

Summary: that receive an increased attentional
signal from the FEF on microstimula-
tion trials. This model is convincing
because it is consistent with the find-
ing that subthreshold FEF stimulation
leads to better visual discrimination in
the movement field (Moore and Fallah,
2004) and the observation that FEF
microstimulation enhances activity in
visual area V4, which is reminiscent
of an attentional effect (Moore and
Armstrong, 2003). The authors' model
further highlights the emerging view
that microstimulation of a brain area
does not simply modulate activity at
the tip of the microelectrode, but also
induces activity changes in distantly
connected brain regions. Taken to-
gether, these data are exciting, be-
cause they demonstrate that attention

  

Source: Andersen, Richard - Division of Biology, California Institute of Technology

 

Collections: Biology and Medicine