1.
Psychon Bull Rev
; 21(2): 436-44, 2014 Apr.
Artigo
em Inglês
| MEDLINE
| ID: mdl-23884690
RESUMO
We investigated how changes in outcome magnitude affect behavioral variation in human volunteers. Our participants entered strings of characters using a computer keyboard, receiving feedback (gaining a number of points) for any string at least ten characters long. During a "surprise" phase in which the number of points awarded was changed, participants only increased their behavioral variability when the reward value was downshifted to a lower amount, and only when such a shift was novel. Upshifts in reward did not have a systematic effect on variability.