Testing a V1 model --- Perceptual biases and saliency effects
نویسندگان
چکیده
منابع مشابه
Modeling the Effects of Perceptual Load: Saliency, Competitive Interactions, and Top-Down Biases
A computational model of visual selective attention has been implemented to account for experimental findings on the Perceptual Load Theory (PLT) of attention. The model was designed based on existing neurophysiological findings on attentional processes with the objective to offer an explicit and biologically plausible formulation of PLT. Simulation results verified that the proposed model is c...
متن کاملTesting the hypothesis that V1 creates a bottom-up saliency map
Saliency is the ability of an image location to attract attention or detailed processing. A unique vertical bar among horizontal bars is said to be salient and pops out perceptually. Physiological data have suggested that mechanisms in the primary visual cortex (V1) contribute to the high saliency of such a unique basic feature, but indicated little regarding 1This chapter is adapted from Zhaop...
متن کاملPerceptual Biases and Mate Choice
Our view of the evolution of sexually selected traits and preferences was influenced radically in the 1990s by studies that emphasized how signals interact with sensory properties of receivers. Here, twenty-five years later, we review evidence that has accumulated in support of this idea. We replace the term sensory biases with perceptual biases to emphasize the growing knowledge of how cogniti...
متن کاملNeural Activities in V1 Create a Bottom-Up Saliency Map
The bottom-up contribution to the allocation of exogenous attention is a saliency map, whose neural substrate is hard to identify because of possible contamination by top-down signals. We obviated this possibility using stimuli that observers could not perceive, but that nevertheless, through orientation contrast between foreground and background regions, attracted attention to improve a locali...
متن کاملPredictive coding as a model of the V1 saliency map hypothesis
The predictive coding/biased competition (PC/BC) model is a specific implementation of the predictive coding theory that has previously been shown to provide a detailed account of the response properties of orientation tuned cells in primary visual cortex (V1). Here it is shown that the same model can successfully simulate psychophysical data relating to the saliency of unique items in search a...
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: Journal of Vision
سال: 2010
ISSN: 1534-7362
DOI: 10.1167/1.3.148