Adaptive gain control during human perceptual choice
نویسندگان
چکیده
منابع مشابه
Adaptive Gain Control during Human Perceptual Choice
Neural systems adapt to background levels of stimulation. Adaptive gain control has been extensively studied in sensory systems but overlooked in decision-theoretic models. Here, we describe evidence for adaptive gain control during the serial integration of decision-relevant information. Human observers judged the average information provided by a rapid stream of visual events (samples). The i...
متن کاملErratum: Global gain modulation generates time-dependent urgency during perceptual choice in humans
Decision-makers must often balance the desire to accumulate information with the costs of protracted deliberation. Optimal, reward-maximizing decision-making can require dynamic adjustment of this speed/accuracy trade-off over the course of a single decision. However, it is unclear whether humans are capable of such time-dependent adjustments. Here, we identify several signatures of time-depend...
متن کاملAdaptive spectral rendering with a perceptual control
This paper proposes a spectral rendering method based on a ray tracing algorithm, whose purpose is a control of the perceptual error made. An adaptive representation of spectral data for light sources and materials is used, which leads, for each pixel, to the evaluation of an algebraic expression. The computations of complex spread for each visible wave, based on an extended photon map, are loc...
متن کاملAdaptive image coding with perceptual distortion control
This paper presents a discrete cosine transform (DCT)-based locally adaptive perceptual image coder, which discriminates between image components based on their perceptual relevance for achieving increased performance in terms of quality and bit rate. The new coder uses a locally adaptive perceptual quantization scheme based on a tractable perceptual distortion metric. Our strategy is to exploi...
متن کاملTwo scale high gain adaptive control
Simple adaptive controllers based on high gain output feedback suffer a lack of robustness with respect to bounded disturbances. Existing modifications achieve boundedness of all solutions but introduce solutions that, even in the absence of disturbances, do not achieve regulation. In this paper a new modification that achieves the desired robustness without the side-effect of undesirable solut...
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: 2014
ISSN: 1534-7362
DOI: 10.1167/14.10.1117