Uniform Spatial Spread of Population Activity in Primate Parafoveal V1 2 3 Uniform Spread of V1 Population Activity 12 13
نویسندگان
چکیده
Title: 1 Uniform spatial spread of population activity in primate parafoveal V1 2 3 Authors: 4 Chris R. Palmer, Yuzhi Chen, and Eyal Seidemann 5 Dept. of Psychology and Center for Perceptual Systems, University of Texas at Austin 6 Austin, TX 78712, USA 7 8 1 These authors contributed equally to this work 9 10 Running Head: 11 Uniform spread of V1 population activity 12 13 Corresponding author: 14 Eyal Seidemann 15 The University of Texas at Austin 16 Dept. of Psychology and Center for Perceptual Systems, 17 108 East Dean Keeton 18 1 University Station A8000 19 Austin, TX 78712-0187 20 Phone (512) 232-6052 21 Fax (512) 471-7356 22 [email protected] 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Articles in PresS. J Neurophysiol (December 14, 2011). doi:10.1152/jn.00117.2011
منابع مشابه
Uniform spatial spread of population activity in primate parafoveal V1.
What are the shape and size of the region in primate V1 that processes information from a single point in visual space? This region, a fundamental property termed cortical point image (CPI) (McIlwain 1986), represents the minimal population of V1 neurons that can be activated by a visual stimulus and therefore has important implications for population coding in the cortex. Previous indirect att...
متن کاملHue maps in primate striate cortex.
The macaque striate cortex (V1) contains neurons that respond preferentially to various hues. The properties of these hue-selective neurons have been studied extensively at the single-unit level, but it is unclear how stimulus hue is represented by the distribution of activity across neuronal populations in V1. Here we use the intrinsic optical signal to image V1 responses to spatially uniform ...
متن کاملPrecise mapping of early visual responses in space and time.
We used magnetoencephalography (MEG) to record brain activity while subjects passively viewed stimuli presented at eight different locations in the parafoveal and peripheral visual fields (VF). For each subject, the experiment was repeated on 3 different days. The generators of the early MEG signal components were localized using tomographic source analysis together with statistical parametric ...
متن کاملRegional heterogeneity in the distribution of somatostatin-28- and somatostatin-28(1-12)-immunoreactive profiles in monkey neocortex.
The distribution of the prosomatostatin-derived peptides (PSDP), somatostatin-28 and somatostatin-28(1-12), in the cynomolgus monkey (Macaca fascicularis) neocortex was characterized in quantitative immunohistochemical studies of 3 visual areas (V1, primary visual cortex; V2, the adjacent visual association area; and AIT, a visual association area in anterior inferior temporal cortex), 2 audito...
متن کاملOrientation-Cue Invariant Population Responses to Contrast-Modulated and Phase-Reversed Contour Stimuli in Macaque V1 and V2
Visual scenes can be readily decomposed into a variety of oriented components, the processing of which is vital for object segregation and recognition. In primate V1 and V2, most neurons have small spatio-temporal receptive fields responding selectively to oriented luminance contours (first order), while only a subgroup of neurons signal non-luminance defined contours (second order). So how is ...
متن کامل