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Spatial frequency masking in postive- and negative-symptom schizophrenia

journal contribution
posted on 2023-05-16, 11:52 authored by Slaghuis, WL, Curran, CE
The role of transient and sustained channels in masking was investigated in groups with positive and negative symptoms in schizophrenia and in a control group. The target stimulus was a 3.0 c/deg sinusoidal grating, which was masked at 11 stimulus-onset asynchronies between -40 to 360 ms by a 1.0 c/deg mask or an 11.0 c/deg mask. The results showed that there was no difference between the control and positive-symptom groups in the perception of the 3 c/deg target stimulus, nor was there a difference when the target was masked by 1 or 11 c/deg masking stimuli. In comparison with the control and positive-symptom groups, the negative-symptom group showed a significantly higher threshold for the perception of the 3 c/deg target stimulus and more masking with a 1 c/deg mask, but not with an 11 c/deg mask. The results provide evidence for distinguishable differences in visual masking between groups with positive and negative symptoms in schizophrenia.


Publication title

Journal of Abnormal Psychology








School of Psychological Sciences


American Psychological Association

Place of publication

Washington, DC

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in psychology

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