scholarly journals Strategic deployment of feature-based attentional gain in primate visual cortex

PLoS Biology ◽  
2019 ◽  
Vol 17 (8) ◽  
pp. e3000387 ◽  
Author(s):  
Vladislav Kozyrev ◽  
Mohammad Reza Daliri ◽  
Philipp Schwedhelm ◽  
Stefan Treue
Keyword(s):  
Visual Cortex ◽  
Primate Visual Cortex ◽  
Feature Based

scholarly journals Feature-Based Attention Increases the Selectivity of Population Responses in Primate Visual Cortex

2004 ◽  
Vol 14 (9) ◽  
pp. 744-751 ◽  
Author(s):  
Julio C Martinez-Trujillo ◽  
Stefan Treue
Keyword(s):  
Visual Cortex ◽  
Population Responses ◽  
Primate Visual Cortex ◽  
Feature Based

scholarly journals A direct interareal feedback-to-feedforward circuit in primate visual cortex

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Caitlin Siu ◽  
Justin Balsor ◽  
Sam Merlin ◽  
Frederick Federer ◽  
Alessandra Angelucci
Keyword(s):  
Visual Cortex ◽  
Primary Visual Cortex ◽  
Projection Neurons ◽  
V1 Neurons ◽  
Cortical Areas ◽  
Area V2 ◽  
Computational Work ◽  
Primate Visual Cortex ◽  
Similar Area ◽  
Hierarchical Computation

AbstractThe mammalian sensory neocortex consists of hierarchically organized areas reciprocally connected via feedforward (FF) and feedback (FB) circuits. Several theories of hierarchical computation ascribe the bulk of the computational work of the cortex to looped FF-FB circuits between pairs of cortical areas. However, whether such corticocortical loops exist remains unclear. In higher mammals, individual FF-projection neurons send afferents almost exclusively to a single higher-level area. However, it is unclear whether FB-projection neurons show similar area-specificity, and whether they influence FF-projection neurons directly or indirectly. Using viral-mediated monosynaptic circuit tracing in macaque primary visual cortex (V1), we show that V1 neurons sending FF projections to area V2 receive monosynaptic FB inputs from V2, but not other V1-projecting areas. We also find monosynaptic FB-to-FB neuron contacts as a second motif of FB connectivity. Our results support the existence of FF-FB loops in primate cortex, and suggest that FB can rapidly and selectively influence the activity of incoming FF signals.

scholarly journals Associative Hebbian Synaptic Plasticity in Primate Visual Cortex

2014 ◽  
Vol 34 (22) ◽  
pp. 7575-7579 ◽  
Author(s):  
S. Huang ◽  
C. Rozas ◽  
M. Trevino ◽  
J. Contreras ◽  
S. Yang ◽  
...  
Keyword(s):  
Synaptic Plasticity ◽  
Visual Cortex ◽  
Primate Visual Cortex

scholarly journals Vascularization in the Primate Visual Cortex during Development

2002 ◽  
Vol 12 (2) ◽  
pp. 199-211 ◽  
Author(s):  
C. Fonta ◽  
M. Imbert
Keyword(s):  
Visual Cortex ◽  
Primate Visual Cortex

Primate Visual Cortex

1994 ◽  
pp. 141-200 ◽  
Author(s):  
Margaret T. T. Wong-Riley
Keyword(s):  
Visual Cortex ◽  
Primate Visual Cortex
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