Document Detail

Conditioning from an information processing perspective.
MedLine Citation:
PMID:  12729971     Owner:  NLM     Status:  Publisher    
The framework provided by Claude Shannon's [Bell Syst. Technol. J. 27 (1948) 623] theory of information leads to a quantitatively oriented reconceptualization of the processes that mediate conditioning. The focus shifts from processes set in motion by individual events to processes sensitive to the information carried by the flow of events. The conception of what properties of the conditioned and unconditioned stimuli are important shifts from the tangible properties to the intangible properties of number, duration, frequency and contingency. In this view, a stimulus becomes a CS if its onset substantially reduces the subject's uncertainty about the time of occurrence of the next US. One way to represent the subject's knowledge of that time of occurrence is by the cumulative probability function, which has two limiting forms: (1) The state of maximal uncertainty (minimal knowledge) is represented by the inverse exponential function for the random rate condition, in which the US is equally likely at any moment. (2) The limit to the subject's attainable certainty is represented by the cumulative normal function, whose momentary expectation is the CS-US latency minus the time elapsed since CS onset. Its standard deviation is the Weber fraction times the CS-US latency.
C R. Gallistel
Publication Detail:
Journal Detail:
Title:  Behavioural processes     Volume:  62     ISSN:  1872-8308     ISO Abbreviation:  Behav. Processes     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-May-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  -    
Other Details:
Languages:  ENG     Pagination:  89-101     Citation Subset:  -    
Rutgers Center for Cognitive Science (RuCCS), Rutgers University at New Brunswick, Busch Campus, 152 Frelinghuysen Road, 08854-8020, Piscataway, NJ, USA
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