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dc.contributor.authorNeufeld, Richard W. J.
dc.contributor.authorMather, Jennifer A.
dc.contributor.authorMerskey, Harold
dc.contributor.authorRussell, Nicholas C.
dc.date.accessioned2020-06-18T14:43:22Z
dc.date.available2020-06-18T14:43:22Z
dc.date.issued1995
dc.identifier.citationNeufeld, R. W. J., Mather, J.A., Merskey, H., Russell, N.C. (1995). Multivariate Structure of Eye Movement Dysfunction Distinguishing Schizophrenia. Multivariate Experimental Clinical Research, 11(1), 1-21.
dc.identifier.issn0147-3964
dc.identifier.urihttps://soar.wichita.edu/handle/10057/17872
dc.description.abstractThe study examined processes associated with eye-movement dysfunction (EMD) maximally discriminating paranoid and nonparanoid schizophrenic subjects from psychiatric and normal controls. Measures included the linear slope of saccade number over velocities of a ramp visual target (a measure shown effectively to distinguish schizophrenia-related EMD), along with several other measures of perceptual/cognitive processes potentially contributing to oculomotor tracking. The first significant dimension, of a multiple discriminant function analysis, was one of 'EMD as related to spatial memory'. Measures of the latter reflected efficiency in encoding properties of a visual stimulus array into a task-facilitative format. The paranoid schizophrenic subgroup had the highest scores on this dimension, normals, the lowest, and depressed psychiatric controls and nonparanoid schizophrenic patients, intermediate. A second significant dimension was one of 'manual motor speed in following a ramp visual target'. Depressives were slowest, and nonparanoid schizophrenic patients fastest. Speed of the nonparanoid patients was ascribed to extrapyramidal effects, especially tremor and akathisia. The results were discussed with respect to information processing involved in oculomotor tracking, and the effects of meditation, or dyskinesia, on manual motor tracking.
dc.language.isoen_US
dc.publisherWichita State University, Dept. of Psychology
dc.relation.ispartofseriesMultivariate Experimental Clinical Research
dc.relation.ispartofseriesv.11 no.1
dc.subjectPsychology
dc.subjectAkathisia
dc.subjectCognition
dc.subjectDepression
dc.subjectExtrapyramidal symptom
dc.subjectEye movement control
dc.subjectEye movement disorder
dc.subjectFemale
dc.subjectHuman
dc.subjectInformation processing
dc.subjectSaccadic eye movement
dc.subjectSchizophrenia
dc.subjectSpatial memory
dc.subjectTremorvision test
dc.titleMultivariate structure of eye movement dysfunction distinguishing schizophrenia
dc.typeArticle


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