Generalized associative representations in parietal cortex
نویسندگان
چکیده
منابع مشابه
Biased Associative Representations in Parietal Cortex
Neurons in cortical sensory areas respond selectively to sensory stimuli, and the preferred stimulus typically varies among neurons so as to continuously span the sensory space. However, some neurons reflect sensory features that are learned or task dependent. For example, neurons in the lateral intraparietal area (LIP) reflect learned associations between visual stimuli. One might expect that ...
متن کاملDISTINCT REPRESENTATIONS WITHIN PARIETAL CORTEX 1 Distinct Representations of Magnitude and Spatial Position within Parietal Cortex During Number-Space Mapping
Mapping numbers onto space is foundational to mathematical cognition. These cognitive operations are often conceptualized in the context of a ‘mental number line’, and involve multiple brain regions in or near the intraparietal sulcus (IPS) that have been implicated both in numeral and spatial cognition. Here we examine possible differentiation of function within these brain areas in relating n...
متن کاملSpatial Representations in the Parietal Cortex May Use Basis Functions
The parietal cortex is thought to represent the egocentric positions of objects in particular coordinate systems. We propose an alternative approach to spatial perception of objects in the parietal cortex from the perspective of sensorimotor transformations. The responses of single parietal neurons can be modeled as a gaussian function of retinal position multiplied by a sigmoid function of eye...
متن کاملThe Representations of Reach Endpoints in Posterior Parietal Cortex Depend
The Representations of Reach Endpoints in Posterior Parietal Cortex Depend 1 On Which Hand Does the Reaching 2 3 Running title: Reach endpoint representations depend on which hand is used 4 5 Steve W. C. Chang* and Lawrence H. Snyder 6 7 Department of Anatomy and Neurobiology 8 Washington University in St. Louis School of Medicine 9 Saint Louis, MO 63110 USA 10 11 12 13 14 15 16 17 18 19 Steve ...
متن کاملA Model of Spatial Representations in Parietal Cortex Explains Hemineglect
La Jolla, CA 92037 [email protected] We have recently developed a theory of spatial representations in which the position of an object is not encoded in a particular frame of reference but, instead, involves neurons computing basis functions of their sensory inputs. This type of representation is able to perform nonlinear sensorimotor transformations and is consistent with the response properties ...
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: Nature Neuroscience
سال: 2011
ISSN: 1097-6256,1546-1726
DOI: 10.1038/nn.2878