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Integration of Sensory and Reward Information during Perceptual Decision-Making in Lateral Intraparietal Cortex (LIP) of the Macaque Monkey
Sensory and Reward Information Perceptual Decision-Making Lateral Intraparietal Cortex Macaque Monkey
2015/6/23
Single neurons in cortical area LIP are known to carry information relevant to both sensory and value-based decisions that are reported by eye movements. It is not known, however, how sensory and valu...
Using time-varying evidence to test models of decision dynamics:bounded diffusion vs.the leaky competing accumulator model
bounded diffusion LCA perceptual choice non-stationary evidence order effects
2015/6/23
When people make decisions, do they give equal weight to evidence arriving at different times? A recent study (Kiani et al., 2008) using brief motion pulses (superimposed on a random moving dot displa...
A neurocomputational approach to obsessive-compulsive disorder
neurocomputational approach obsessive-compulsive disorder
2015/6/23
A recent article shows that a change in a single parameter in a neural-network model of brain dynamics leads to repetitive behaviors that resist termination and towards which the network tends. These ...
Why Bilateral Damage Is Worse than Unilateral Damage to the Brain
Bilateral Damage Unilateral Damage Brain
2015/6/23
Human and animal lesion studies have shown that behavior can be catastrophically impaired after bilateral lesions but that unilateral damage often produces little or no effect, even controlling for le...
Response to McQueen et al.:Theoretical and empirical arguments support interactive processing
McQueen Theoretical empirical arguments interactive processing
2015/6/19
McQueen et al. [1] continue to argue against interactive processes in speech perception, but we suggest that their arguments are unconvincing. Theoretical and empirical arguments support the interacti...
A homeostatic rule for inhibitory synapses promotes temporal sharpening and cortical reorganization
experience interneurons learning computational neuroscience
2015/6/19
Experience with transient stimuli leads to stronger neural responses that also rise and fall more sharply in time. This sharpening enhances the processing of transients and may be especially relevant ...
A re-examination of the evidence for the somatic marker hypothesis:What participants know in the Iowa gambling task
somatic marker hypothesis Iowa gambling task
2015/6/19
Bechara, Damasio, and coworkers [Bechara, A., Damasio, H., Tranel,D. & Damasio, A. R. (1997) Science 275, 1293–1295] have reported that normal participants decide advantageously before knowing the adv...
Is knowing always feeling?
knowing always feeling
2015/6/19
In and McClelland (1) report find- ings that raise questions regarding the interpretation of a highly influ- n a recent issue of PNAS, Maia ential neuropsychological study of decisionmaking behavior (...
The Iowa Gambling Task and the somatic marker hypothesis:some questions and answers
Iowa Gambling Task somatic marker hypothesis some questions and answers
2015/6/19
A recent study by Maia and McClelland on participants’ knowledge in the Iowa Gambling Task suggests a different interpretation for an experiment we reported in 1997. The authors use their results to q...
The somatic marker hypothesis: still many questions but no answers
somatic marker still many questions no answers
2015/6/19
In the short space we have to reply to Bechara, Damasio, Tranel and Damasio [1] we will focus on three issues. First, we review important problems with their interpretations of our study. Second, we a...
Teaching the /r/–/l/ discrimination to Japanese adults:behavioral and neural aspects
Plasticity Learning Speech discrimination training Hebbian learning Language learning in adulthood
2015/6/19
Several studies have been conducted to address the learning of a nonnative speech contrast in adulthood, using native speakers of Japanese and the English /r/–/l/ contrast. Japanese adults were asked ...
Understanding Failures of Learning:Hebbian Learning,Competition for Representational Space,and some Preliminary Experimental Data
Understanding Failures of Learning Hebbian Learning Competition for Representational Space Experimental Data
2015/6/19
The availability of powerful learning algorithms such as back-propagation has created a situation in which we now know how to teach neural networks many complex things. Models that use back propagatio...
Familiarity Breeds Differentiation:A Subjective-Likelihood Approach to the Effects of Experience in Recognition Memory
Familiarity Breeds Differentiation Subjective-Likelihood Approach Recognition Memory
2015/6/19
With repeated exposure, people become better at identifying presented items and better at rejecting items that have not been presented. This differentiation effect is captured in a model consisting of...
Role of the hippocampus in learning and memory:A computational analysis
hippocampus learning memory computational analysis
2015/6/19
Role of the hippocampus in learning and memory:A computational analysis.
A rich body of data exists showing that recollection of specific information makes an important contribution to recognition memory, which is distinct from the contribution of familiarity, and is not a...