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Category discriminability, base-rate, and payoff effects in perceptual categorization


, : Category discriminability, base-rate, and payoff effects in perceptual categorization. Perception & Psychophysics 63(2): 361-376

The optimality of perceptual categorization performance under manipulations of category discriminability (i.e., d' level), base rates, and payoffs was examined. Base-rate and payoff manipulations across two category discriminabilities allowed a test of the hypothesis that the steepness of the objective reward function affects performance (i.e., the flat-maxima hypothesis), as well as the hypothesis that observers combine base-rate and payoff information independently. Performance was (1) closer to optimal for the steeper objective reward function, in line with the flat-maxima hypothesis, (2) closer to optimal in base-rate conditions than in payoff conditions, and (3) in partial support of the hypothesis that base-rate and payoff knowledge is combined independently. Implications for current theories of base-rate and payoff learning are discussed.

US$29.90

PMID: 11281110


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Cha, M-Ji.; Choi, E.; Lee, S.; Song, B-Wook.; Yoon, C.; Hwang, K-Chul., 2016: The microRNA-dependent cell fate of multipotent stromal cells differentiating to endothelial cells. In the endothelial recovery process, bone marrow-derived MSCs are a potential source of cells for both research and therapy, and their capacities to self-renew and to differentiate into all the cell types in the human body make them a promising th...

Grist, T.M.; Kneeland, J.B.; Rilling, W.R.; Jesmanowicz, A.; Froncisz, W.; Hyde, J.S., 1989: Gated cardiac MR imaging and P-31 MR spectroscopy in humans at 1.5 T. Work in progress. The authors describe a technique to acquire gated cardiac proton magnetic resonance images and localized hydrogen-1 and phosphorus-31 spectra with a doubly tuned surface coil probe. The probe reduces study time because the need to exchange imaging...

Rowland S.M., 1979: Charles Walcott and the North American Lower Cambrian type section at Waucoba Spring. Abstracts with Programs - Geological Society of America 11(3): 125

Spinney, L., 2003: Slime mould clue to depression. Drug Discovery Today 8(18): 817-818

Kurtz, K.M.; Schaefer, J.A.; Hamilton, R.G.; Adkinson, N.F.Jr, 1997: Hooded exposure chamber for particulate latex allergen challenge. Journal of Allergy & Clinical Immunology 99(1 PART 2): S158

Wersinger, S.R.; Lolait, S.J.; O'carroll, A.M.; Young, W.S.IIi, 2001: Deficits in social memory in male vasopressin 1b receptor knockout mice. Hormones & Behavior 39(4): 354, June

Thiel, A.; Gomolinsky, U.; Huy, C., 2008: Stereotypes of ageing and sporting activity in the over-50s. Stereotypes of ageing affect activity in older adults. However, no representative studies on the impact of "images of ageing" on sporting activity existed until now. In a telephone survey, 2002 over-50s were asked about sporting activity...

Guisado, O.; Martinez, S.; Pastor, J., 2002: A novel, facile methodology for the synthesis of N,N'-bis(tert-butoxycarbonyl)-protected guanidines using polymer-supported carbodiimide. A novel methodology for the synthesis of guanidines from amines has been developed using polymer assisted synthesis, potentially allowing the preparation of series of compounds in a high throughput manner. The methodology comprises the use of poly...

Hirakata, Y.; Yamaguchi, T.; Izumikawa, K.; Matsuda, J.; Tomono, K.; Kaku, M.; Koga, H.; Yamada, Y.; Kohno, S.; Kamihira, S., 1997: In vitro susceptibility studies and detection of vancomycin resistance genes in clinical isolates of enterococci in Nagasaki, Japan. Glycopeptide resistance in enterococci is now a cause of clinical concern in the United States and Europe. However, details of vancomycin resistance in enterococci in Japan have been unknown. We measured minimum inhibitory concentrations (MICs) of...

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