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Decision making and memory: a critique of Juslin and Olsson's (1997) sampling model of sensory discrimination
1Department of Psychology, Adelaide University, Adelaide, South Australia 5005, Australia. douglas.vickers@adelaide.edu.au
Abstract:
P. Juslin and H. Olsson's (1997) distinction between Thurstonian and Brunswikian uncertainty is examined and their sampling model of sensory discrimination analyzed as a representative of the class of memoryless decision processes. The separate characteristics and combined behavior of 4 main components of the model are explored: (a) the basic decision process, (b) the assumption of deadline responding, (c) the moving window model of memory, and (d) the hypothesized basis for confidence. It is argued that grafting a moving window memory onto a memoryless decision process has several undesirable consequences. Moreover, the suggested basis for confidence leads to predictions that are counterintuitive and unsupported by empirical evidence. It is concluded that the window-sampling model is a maladapted combination of inappropriate elements, which is implausible as a model of decision making, memory, or confidence, in sensory discrimination.
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