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Author Zentall, S.S.; Zentall, T.R. openurl 
  Title Activity and task performance of hyperactive children as a function of environmental stimulation Type Journal Article
  Year 1976 Publication Journal of consulting and clinical psychology Abbreviated Journal J Consult Clin Psychol  
  Volume 44 Issue 5 Pages 693-697  
  Keywords Achievement; Acoustic Stimulation; *Arousal; Auditory Perception; Child; Humans; Hyperkinesis/*etiology; Photic Stimulation; Visual Perception  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-006X ISBN Medium  
  Area Expedition Conference  
  Notes (up) PMID:965541 Approved no  
  Call Number refbase @ user @ Serial 272  
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Author Clement, T.S.; Weaver, J.E.; Sherburne, L.M.; Zentall, T.R. openurl 
  Title Simultaneous discrimination learning in pigeons: value of S- affects the relative value of its associated S+ Type Journal Article
  Year 1998 Publication The Quarterly journal of experimental psychology. B, Comparative and physiological psychology Abbreviated Journal Q J Exp Psychol B  
  Volume 51 Issue 4 Pages 363-378  
  Keywords Animals; *Attention; Color Perception; Columbidae; *Discrimination Learning; Female; Male; *Motivation; Orientation; Transfer (Psychology)  
  Abstract In a simple simultaneous discrimination involving a positive stimulus (S+) and a negative stimulus (S-), it has been hypothesized that positive value can transfer from the S+ to the S- (thus increasing the relative value of the S-) and also that negative value can transfer from the S- to the S+ (thus diminishing the relative value of the S+; Fersen, Wynne, Delius, & Staddon, 1991). Evidence for positive value transfer has been reported in pigeons (e.g. Zentall & Sherburne, 1994). The purpose of the present experiments was to determine, in a simultaneous discrimination, whether the S- diminishes the value of the S+ or the S- is contrasted with the S+ (thus enhancing the value of the S+). In two experiments, we found evidence for contrast, rather than value transfer, attributable to simultaneous discrimination training. Thus, not only does the S+ appear to enhance the value of the S-, but the S- appears to enhance rather than reduce the value of the S+.  
  Address Department of Psychology, University of Kentucky, Lexington 40506-0044, USA  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0272-4995 ISBN Medium  
  Area Expedition Conference  
  Notes (up) PMID:9854439 Approved no  
  Call Number refbase @ user @ Serial 252  
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