Stimulus intensity and information processing
نویسندگان
چکیده
منابع مشابه
Brain oscillations differentially encode noxious stimulus intensity and pain intensity
Noxious stimuli induce physiological processes which commonly translate into pain. However, under certain conditions, pain intensity can substantially dissociate from stimulus intensity, e.g. during longer-lasting pain in chronic pain syndromes. How stimulus intensity and pain intensity are differentially represented in the human brain is, however, not yet fully understood. We therefore used el...
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Humans are selective information processors who efficiently prevent goal-inappropriate stimulus information to gain control over their actions. Nonetheless, stimuli, which are both unnecessary for solving a current task and liable to cue an incorrect response (i.e., "distractors"), frequently modulate task performance, even when consistently paired with a physical feature that makes them easily...
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A decision model based on that of McGill (1963) relating stimulus intensity to response latency is applied to conditioning and reactiontime data. Points of similarity and identity between this model, HullSpence behavior theory, and the theory of signal detection are indicated. It is suggested that the concept of a variable, experimentally manipulable detection criterion or reaction threshold is...
متن کاملStimulus intensity and the perception of duration.
This article explores the widely reported finding that the subjective duration of a stimulus is positively related to its magnitude. In Experiments 1 and 2 we show that, for both auditory and visual stimuli, the effect of stimulus magnitude on the perception of duration depends upon the background: Against a high intensity background, weak stimuli are judged to last longer. In Experiment 3 we s...
متن کاملOpposite adaptive processing of stimulus intensity in two major nuclei of the somatosensory brainstem.
Tactile information ascends from the brainstem to the somatosensory cortex via two major parallel pathways, lemniscal and paralemniscal. In both pathways, and throughout all processing stations, adaptation effects are evident. Although parallel processing of sensory information is not unique to this system, the distinct information carried by these adaptive pathways remains unclear. Using in vi...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1977
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03199699