Abstract
The accuracy with which observers judged whether two words belonged to the same semantic category was determined from a detection-theoretic analysis ofsame-different judgments. In Experiment 1, one word was presented centrally and the other word in either the left visual field (LVF) or the right visual field (RVF); in Experiment 2, both words were presented to either the LVF or the RVF. In order to obtain receiver-operating characteristics (ROCs) of performance, observers were asked to rate their confidence that the two words belonged to the same semantic category. Two models of the decision strategy were fitted to the obtained characteristics: a differencing model, in which the decision variable was the difference between the two observations; and an optimal model, in which each observation was judged in relation to a criterion. In both experiments, the optimal model provided a better fit than the differencing model to the obtained characteristics. Maximum-likelihood estimates of both the criterion-free parameter,d′, and the area under the operating characteristic,p(A), were greater for words presented in the RVF than for those presented in the LVF.
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References
Algom, D. (1992). In D. Algom (Ed.),Psychophysical approaches to cognition: Advances in psychology (Vol. 92, pp. 1–12). Amsterdam: Elsevier.
Bagnara, S., Boles, D. B., Simion, F., &Umiltà, C. (1983). Symmetry and similarity effects in the comparison of visual patterns.Perception & Psychophysics,34, 578–584.
Barron, R. W., &Henderson, L. (1977). The effects of lexical and semantic information on same-different visual comparison of words.Memory & Cognition,5, 566–579.
Barron, R. W., &Pittenger, J. B. (1974). The effect of orthographic structure and lexical meaning on “same”-“different” judgments.Quarterly Journal of Experimental Psychology,26, 566–581.
Borland (1990).Turbo Pascal 6.0 library reference. Scotts Valley, CA: Borland International.
Bradshaw, J. L. (1989).Hemispheric specialization and psychological function. Chichester, U.K.: Wiley.
Bryden, M. P. (1982).Laterality: Functional asymmetry in the intact brain. New York: Academic Press.
Bryden, M. P. (1988). Cerebral specialization: Clinical and experimental assessment. In F. Boller & J. Grafman (Eds.),Handbook of neuropsychology (Vol. 1, pp. 143–159). Amsterdam: Elsevier.
Chiarello, C. (1988). Lateralization of lexical processes in the normal brain: Review of visual half-field research. In H. A. Whitaker (Ed.),Contemporary reviews in neuropsychology (pp. 36–76). New York: Springer-Verlag.
Coltheart, M. (1980). Deep dyslexia: A right hemisphere hypothesis. In M. Coltheart, K. Patterson, & J. Marshall (Eds.),Deep dyslexia (pp. 326-380). London: Routledge & Kegan Paul.
Dorfman, D. D., &Berbaum, K. S. (1986). RSCORE-J: Pooled rating-method data: A computer program for analyzing pooled ROC curves.Behavior Research Methods, Instruments, & Computers,18, 452–462.
Egeth, H., &Epstein, J. (1972). Differential specialization of the cerebral hemispheres for the perception of sameness and difference.Perception & Psychophysics,12, 218–220.
Farell, B. (1985). “Same”-“different” judgments: A review of current controversies in perceptual comparisons.Psychological Bulletin,98, 419–456.
Francis, M. A. (1993).Facilitation and inhibition between attended and unattended words: Addressing the issue of early versus late selection. Unpublished doctoral dissertation, University of Auckland, Auckland.
Gibson, A. R., Dimond, S. J., &Gazzaniga, M. S. (1972). Left field superiority for word matching.Neuropsychologia,10, 463–466.
Green, D. M., &Swets, J. A. (1966).Signal detection theory and psychophysics. New York: Wiley.
Gross, M. M. (1972). Hemispheric specialization for processing of visually presented verbal and spatial stimuli.Perception & Psychophysics,12, 357–363.
Harnad, S. (1987). Category induction and representation. In S. Harnad (Ed.),Categorical perception: The groundwork of cognition (pp. 535–565). Cambridge: Cambridge University Press.
Hautus, M. J., Irwin, R. J., &Sutherland, S. (1994). Relativity of judgements about sound amplitude and the asymmetry of the same-different ROC.Quarterly Journal of Experimental Psychology,47A, 1035–1045.
Heron, W. (1957). Perception as a function of retinal locus and attention.American Journal of Psychology,70, 38–48.
Irwin, R. J., & Hautus, M. J. (1993).Decision strategies in same-different judgments revealed by their receiver operating characteristics and psychometric functions. Unpublished manuscript.
Irwin, R. J., Stillman, J. A., Hautus, M. J., &Huddleston, L. M. (1993). Measurement of taste discrimination with the same-different task: A detection-theory analysis.Journal of Sensory Studies,8, 229–239.
Johnson, K. O. (1980). Sensory discrimination: Decision processes.Journal of Neurophysiology,43, 1771–1792.
Kinsbourne, M. (1970). The cerebral basis of lateral asymmetries in attention.Acta Psychologica,33, 193–201.
Macmillan, N. A., &Creelman, C. D. (1991).Detection theory: A user’s guide. Cambridge: Cambridge University Press.
Macmillan, N. A., Kaplan, H. L., &Creelman, C. D. (1977). The psychophysics of categorical perception.Psychological Review,84, 452–471.
McNicol, D. M. (1972).A primer of signal detection theory. London: Allen and Unwin.
Medin, D. L., &Barsalou, L. W. (1987). Categorization processes and categorical perception. In S. Harnad (Ed.),Categorical perception: The groundwork of cognition (pp. 455-490). Cambridge: Cambridge University Press.
Noreen, D. L. (1981). Optimal decision rules for some common psychophysical paradigms. In S. Grossberg (Ed.),Mathematical psychology and psychophysiology (SIAMS-AMS Proceedings, Vol. 13, pp. 237–279). Providence, RI: American Mathematical Society.
Pollack, I. (1952). Information of elementary auditory displays.Journal of the Acoustical Society of America,24, 745–750.
Sergent, J. (1987). Information processing and laterality effects for object and face perception. In G. W. Humphreys & M. J. Riddoch (Eds.),Visual object processing: A cognitive neuropsychological approach (pp. 145–173). Hove, U.K.: Erlbaum.
Smith, E. E., Shoben, E. J., &Rips, L. J. (1974). Structure and process in semantic memory: A featural model for semantic decisions.Psychological Review,81, 214–241.
Sorkin, R. D. (1962). Extension of the theory of signal detectability to matching procedures in psychoacoustics.Journal of the Acoustical Society of America,34, 1745–1751.
Swets, J. A., &Pickett, R. M. (1982).Evaluation of diagnostic systems: Methods from signal detection theory. New York: Academic Press.
Thorndike, E. L., &Lorge, I. (1944).The teacher’s handbook of 30,000 words. New York: Columbia University, Teachers College Press.
Urcuioli, P. J., Klein, R. M., &Day, J. (1981). Hemispheric differences in semantic processing: Category matching is not the same as category membership.Perception & Psychophysics,29, 343–351.
Vogels, R., &Orban, G. A. (1986). Decision processes in visual discrimination of line orientation.Journal of Experimental Psychology: Human Perception & Performance,12, 115–132.
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Francis, M.A., Irwin, R.J. Decision strategies and visual-field asymmetries in same-different judgments of word meaning. Memory & Cognition 23, 301–312 (1995). https://doi.org/10.3758/BF03197232
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DOI: https://doi.org/10.3758/BF03197232