Prior Knowledge about Objects Determines Neural Color Representation in Human Visual Cortex
نویسندگان
چکیده
منابع مشابه
Decoding Color Responses in Human Visual Cortex
Color percept is a subjective experience and, in general, it is impossible for other people to tell someone’s color percept. The present study demonstrated that the simple image-classification analysis of brain activity obtained by a functional magnetic resonance imaging (fMRI) technique enables to tell which of four colors the subject is looking at. Our results also imply that color informatio...
متن کاملNeural representation of form-contingent color filling-in in the early visual cortex.
Perceptual filling-in exemplifies the constructive nature of visual processing. Color, a prominent surface property of visual objects, can appear to spread to neighboring areas that lack any color. We investigated cortical responses to a color filling-in illusion that effectively dissociates perceived color from the retinal input (van Lier, Vergeer, & Anstis, 2009). Observers adapted to a star-...
متن کاملRepresentation of Color Stimuli in Awake Macaque Primary Visual Cortex
We investigated the responses of single neurons in primary visual cortex (area V1) of awake monkeys to chromatic stimuli. Chromatic tuning properties, determined for homogeneous color patches presented on a neutral gray background, varied strongly between cells. The continuum of preferred chromaticities and tuning widths indicated a distributed representation of color signals in V1. When stimul...
متن کاملNeural Representation of Ambiguous Visual Objects in the Inferior Temporal Cortex
Inferior temporal (IT) cortex as the final stage of the ventral visual pathway is involved in visual object recognition. In our everyday life we need to recognize visual objects that are degraded by noise. Psychophysical studies have shown that the accuracy and speed of the object recognition decreases as the amount of visual noise increases. However, the neural representation of ambiguous visu...
متن کاملA conjugate neural representation of visual objects in three dimensions
An arbitrary movement of a rigid object in 3-D space can always be decomposed instantaneously into a translation plus a rotation. How should the neural representation of a static view of a 3-D object be updated according to its instantaneous motion? Assuming that a motion-sensitive neuron detects the rate of change of an arbitrary function of the static view of an object, we predict that the ge...
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: Cerebral Cortex
سال: 2014
ISSN: 1047-3211,1460-2199
DOI: 10.1093/cercor/bhu224