The perception of real and illusory motion in schizophrenia
An illusion of rapid movement is normally perceived when an attentional cue (such as a peripheral flash) preceeds the onset of a line. The movement is perceived as receding away from the cue. This study investigated how this illusion was perceived by people with schizophrenia. Nineteen participants...
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| Veröffentlicht in: | Neuropsychologia 2010-08, Vol.48 (10), p.3121-3127 |
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| container_title | Neuropsychologia |
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| creator | Crawford, T.J. Hamm, J.P. Kean, M. Schmechtig, A. Kumari, V. Anilkumar, A.P. Ettinger, U. |
| description | An illusion of rapid movement is normally perceived when an attentional cue (such as a peripheral flash) preceeds the onset of a line. The movement is perceived as receding away from the cue. This study investigated how this illusion was perceived by people with schizophrenia. Nineteen participants with schizophrenia and 26 healthy matched controls were presented with a series of real, illusory, no motion or combined real and illusory motion stimuli at various target speeds. Detection thresholds were measured to determine the reliability of motion perception. The participants with schizophrenia were not distinguished from the control group in the perception of real motion. However, the motion detection curves for the schizophrenia group revealed a reduction in the perceptual effect of illusory motion in comparison to controls. The findings revealed that people with schizophrenia may be less easily deceived by illusory motion in comparison to healthy participants. |
| doi_str_mv | 10.1016/j.neuropsychologia.2010.06.027 |
| format | Article |
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The findings revealed that people with schizophrenia may be less easily deceived by illusory motion in comparison to healthy participants.</description><subject>Adult</subject><subject>Adult and adolescent clinical studies</subject><subject>Analysis of Variance</subject><subject>Attention</subject><subject>Attention - physiology</subject><subject>Biological and medical sciences</subject><subject>Case-Control Studies</subject><subject>Chi-Square Distribution</subject><subject>Decision Making - physiology</subject><subject>Humans</subject><subject>Illusion</subject><subject>Illusions - physiology</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Motion</subject><subject>Motion Perception - physiology</subject><subject>Neuropsychological Tests</subject><subject>Photic Stimulation - methods</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychopathology. Psychiatry</subject><subject>Psychoses</subject><subject>Pursuit, Smooth - physiology</subject><subject>Reaction Time - physiology</subject><subject>Schizophrenia</subject><subject>Schizophrenia - physiopathology</subject><subject>Schizophrenic Psychology</subject><subject>Smooth pursuit eye movement</subject><subject>Young Adult</subject><issn>0028-3932</issn><issn>1873-3514</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkE1LAzEQhoMotlb_guxFPW2dJJvtBkEQ8QsEL_Uc0mRqU7abNekK9deb2qrgRU9zeJ-Zd3gIOaUwpEDL8_mwwS74Nq7MzNf-xekhgxRCOQQ22iF9Wo14zgUtdkkfgFU5l5z1yEGMcwAoBKv2SY9BCUAr1icX4xlmLQaD7dL5JvPTLKCuM93YzNV1F31YZQv_mbkmi2bm3n07C9g4fUj2prqOeLSdA_J8ezO-vs8fn-4erq8ec1MIvswFyJLLCdVCiFJyWVIwvJJyYrHQaKGspEDLpZlUWqYVxjjYkZSWGis0UD4gZ5u7bfCvHcalWrhosK51g76LaiSKShYC-N9kIZOSdcOAXG5IE3yMAaeqDW6hw0pRUGvTaq5-m1Zr0wpKlUynA8fbqm6yQPu9_qU2ASdbQEej62nQjXHxh-NUsPRM4u43HCaFbw6DisZhY9C6gGaprHf__ekDzqelxw</recordid><startdate>20100801</startdate><enddate>20100801</enddate><creator>Crawford, T.J.</creator><creator>Hamm, J.P.</creator><creator>Kean, M.</creator><creator>Schmechtig, A.</creator><creator>Kumari, V.</creator><creator>Anilkumar, A.P.</creator><creator>Ettinger, U.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7TK</scope></search><sort><creationdate>20100801</creationdate><title>The perception of real and illusory motion in schizophrenia</title><author>Crawford, T.J. ; Hamm, J.P. ; Kean, M. ; Schmechtig, A. ; Kumari, V. ; Anilkumar, A.P. ; Ettinger, U.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c453t-509639b1a5556939610c3899bde4aed06895ed39cb8a9c452230d799d1cd5a013</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adult</topic><topic>Adult and adolescent clinical studies</topic><topic>Analysis of Variance</topic><topic>Attention</topic><topic>Attention - physiology</topic><topic>Biological and medical sciences</topic><topic>Case-Control Studies</topic><topic>Chi-Square Distribution</topic><topic>Decision Making - physiology</topic><topic>Humans</topic><topic>Illusion</topic><topic>Illusions - physiology</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Motion</topic><topic>Motion Perception - physiology</topic><topic>Neuropsychological Tests</topic><topic>Photic Stimulation - methods</topic><topic>Psychology. 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The movement is perceived as receding away from the cue. This study investigated how this illusion was perceived by people with schizophrenia. Nineteen participants with schizophrenia and 26 healthy matched controls were presented with a series of real, illusory, no motion or combined real and illusory motion stimuli at various target speeds. Detection thresholds were measured to determine the reliability of motion perception. The participants with schizophrenia were not distinguished from the control group in the perception of real motion. However, the motion detection curves for the schizophrenia group revealed a reduction in the perceptual effect of illusory motion in comparison to controls. 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| subjects | Adult Adult and adolescent clinical studies Analysis of Variance Attention Attention - physiology Biological and medical sciences Case-Control Studies Chi-Square Distribution Decision Making - physiology Humans Illusion Illusions - physiology Medical sciences Middle Aged Motion Motion Perception - physiology Neuropsychological Tests Photic Stimulation - methods Psychology. Psychoanalysis. Psychiatry Psychopathology. Psychiatry Psychoses Pursuit, Smooth - physiology Reaction Time - physiology Schizophrenia Schizophrenia - physiopathology Schizophrenic Psychology Smooth pursuit eye movement Young Adult |
| title | The perception of real and illusory motion in schizophrenia |
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