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Decoding a Perceptual Decision Process across Cortex

Summary: Neuron
Decoding a Perceptual Decision
Process across Cortex
AdriaŽ n HernaŽ ndez,1 VeroŽ nica NaŽ cher,1 Rogelio Luna,1 Antonio Zainos,1 Luis Lemus,1 Manuel Alvarez,1 Yuriria VaŽ zquez,1
Liliana Camarillo,1 and Ranulfo Romo1,*
1Instituto de FisiologiŽa Celular-Neurociencias, Universidad Nacional AutoŽ noma de MeŽ xico, 04510 MeŽ xico, D.F., Mexico
*Correspondence: rromo@ifc.unam.mx
DOI 10.1016/j.neuron.2010.03.031
Perceptual decisions arise from the activity of
neurons distributed across brain circuits. But, decod-
ing the mechanisms behind this cognitive operation
across brain circuits has long posed a difficult
problem. We recorded the neuronal activity of diverse
cortical areas, while monkeys performed a vibrotac-
tile discrimination task. We find that the encoding of
the stimuli during the stimulus periods, working
memory, and comparison periods is widely distrib-
uted across cortical areas. Notably, during the


Source: Andrzejak, Ralph Gregor - Departament de Tecnologia, Universitat Pompeu Fabra


Collections: Computer Technologies and Information Sciences