Stimulus proba]bility and choice reaction time
نویسندگان
چکیده
منابع مشابه
Stimulus Discr1minability and S-r Compatibility: Evidence for Independent Effects in Choice Reaction Time
In contrast to flexible capacity theories of information-processing behavior, discrete stage models generally assume that the functioning of one stage (e.g., stimulus discrimination) proceeds independently of the demands on some other stage (e.g., response selection). These alternatives were tested by factorially varying stimulus similarity and stimulus-response compatibility in a speeded brigh...
متن کاملThe modulation of simple reaction time by the spatial probability of a visual stimulus.
Simple reaction time (SRT) in response to visual stimuli can be influenced by many stimulus features. The speed and accuracy with which observers respond to a visual stimulus may be improved by prior knowledge about the stimulus location, which can be obtained by manipulating the spatial probability of the stimulus. However, when higher spatial probability is achieved by holding constant the st...
متن کاملA Bayesian Sequential Sampling Model of Choice Reaction Time Incorporating Stimulus Onset/Duration Uncertainty
We propose a Bayesian sequential sampling model of choice reaction time (RT) which incorporates uncertainties about stimulus identity, onset, and duration. The model is the nowstandard random-walk/drift-diffusion model, with a thresholdbased response mechanism. The “substance” of the drift, however, is the posterior probability (belief) that a participant updates on a moment-to-moment basis dur...
متن کاملAn electromyographic investigation of the effect of stimulus-response mapping on choice reaction time.
The activity of the agonist muscles was recorded during the performance of a two-choice visual reaction time (RT) task in which the compatibility of the stimulus-response mapping was manipulated. Correct trials were distinguished according to whether or not the activation of the agonist of the required response was preceded by an activation of the agonist of the nonrequired response. Double act...
متن کاملSome experiments on simple and choice reaction time.
4 experiments in simple and choice reaction time (RT) are reported. Experiment I examines the effect of monetary payoffs on the accuracy and variability of time estimation. Experiment II examines the effect of moving the position of a narrow payoff band along the time axis on the variability of observed RTs. This appears to alter the proportion of bona fide reactions (of low variability) and of...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1972
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03212860