scholarly journals Functional Role of the Fast Transient Outward K+ Current IA in Pyramidal Neurons in (Rat) Primary Visual Cortex

2005 ◽  
Vol 25 (40) ◽  
pp. 9185-9194 ◽  
Author(s):  
W. Yuan
Keyword(s):  
Visual Cortex ◽  
Primary Visual Cortex ◽  
Functional Role ◽  
Pyramidal Neurons ◽  
K Current ◽  
Fast Transient

A functional role of the erg-like inward-rectifying K+ current in prolactin secretion from rat lactotrophs

1999 ◽  
Vol 148 (1-2) ◽  
pp. 37-45 ◽  
Author(s):  
C.K Bauer ◽  
R Schäfer ◽  
D Schiemann ◽  
G Reid ◽  
I Hanganu ◽  
...  
Keyword(s):  
Functional Role ◽  
Prolactin Secretion ◽  
K Current

Functional postnatal development of the rat primary visual cortex and the role of visual experience: Dark rearing and monocular deprivation

1994 ◽  
Vol 34 (6) ◽  
pp. 709-720 ◽  
Author(s):  
Michela Fagiolini ◽  
Tommaso Pizzorusso ◽  
Nicoletta Berardi ◽  
Luciano Domenici ◽  
Lamberto Maffei
Keyword(s):  
Visual Cortex ◽  
Postnatal Development ◽  
Primary Visual Cortex ◽  
Visual Experience ◽  
Monocular Deprivation ◽  
Dark Rearing

A Potential Role of Auditory Induced Modulations in Primary Visual Cortex

2015 ◽  
Vol 28 (3-4) ◽  
pp. 331-349 ◽  
Author(s):  
Frederico A. C. Azevedo ◽  
Frederico A. C. Azevedo ◽  
Michael Ortiz-Rios ◽  
Frederico A. C. Azevedo ◽  
Michael Ortiz-Rios ◽  
...  
Keyword(s):  
Visual Cortex ◽  
Primary Visual Cortex ◽  
Sensory Information ◽  
Orienting Response ◽  
Auditory Signal ◽  
Sensory Sensitivity ◽  
Biologically Relevant ◽  
Additional Information ◽  
Functional Modulation

A biologically relevant event is normally the source of multiple, typically correlated, sensory inputs. To optimize perception of the outer world, our brain combines the independent sensory measurements into a coherent estimate. However, if sensory information is not readily available for every pertinent sense, the brain tries to acquire additional information via covert/overt orienting behaviors or uses internal knowledge to modulate sensory sensitivity based on prior expectations. Cross-modal functional modulation of low-level auditory areas due to visual input has been often described; however, less is known about auditory modulations of primary visual cortex. Here, based on some recent evidence, we propose that an unexpected auditory signal could trigger a reflexive overt orienting response towards its source and concomitantly increase the primary visual cortex sensitivity at the locations where the object is expected to enter the visual field. To this end, we propose that three major functionally specific pathways are employed in parallel. A stream orchestrated by the superior colliculus is responsible for the overt orienting behavior, while direct and indirect (via higher-level areas) projections from A1 to V1 respectively enhance spatiotemporal sensitivity and facilitate object detectability.

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