Segregation of feedforward and feedback projections in mouse visual cortex
نویسندگان
چکیده
منابع مشابه
Segregation of feedforward and feedback projections in mouse visual cortex.
Hierarchical organization is a common feature of mammalian neocortex. Neurons that send their axons from lower to higher areas of the hierarchy are referred to as "feedforward" (FF) neurons, whereas those projecting in the opposite direction are called "feedback" (FB) neurons. Anatomical, functional, and theoretical studies suggest that these different classes of projections play fundamentally ...
متن کاملFeedforward, horizontal, and feedback processing in the visual cortex.
The cortical visual system consists of many richly interconnected areas. Each area is characterized by more or less specific receptive field tuning properties. However, these tuning properties reflect only a subset of the interactions that occur within and between areas. Neuronal responses may be modulated by perceptual context or attention. These modulations reflect lateral interactions within...
متن کاملRole of Feedforward and Feedback Projections in Figure-Ground Responses
features (e.g. orientation) within a small part of the visual scene. The feature information is further conveyed to surrounding extra-striate areas and from there to the higher level visual areas. In fact, the feedforward projection is dichotomized into two streams. Axons projecting towards areas in the temporal lobe define the ventral pathway (also called as the “what” or “perception” stream) ...
متن کاملDistinct balance of excitation and inhibition in an interareal feedforward and feedback circuit of mouse visual cortex.
Mouse visual cortex is subdivided into multiple distinct, hierarchically organized areas that are interconnected through feedforward (FF) and feedback (FB) pathways. The principal synaptic targets of FF and FB axons that reciprocally interconnect primary visual cortex (V1) with the higher lateromedial extrastriate area (LM) are pyramidal cells (Pyr) and parvalbumin (PV)-expressing GABAergic int...
متن کاملExperience-dependent development of feedforward and feedback circuits between lower and higher areas of mouse visual cortex
Using whole cell recordings, we studied excitatory and inhibitory postsynaptic currents (EPSCs, IPSCs) in feedforward (FF) and feedback (FB) circuits between areas V1 and LM (lateromedial) in developing mouse visual cortex. We found that in mice reared with normal visual experience, FF and FB synapses onto layer 2/3 pyramidal neurons develop equal but submaximal strengths whose EPSCs are increa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Comparative Neurology
سال: 2011
ISSN: 0021-9967
DOI: 10.1002/cne.22675