Spatial frequency processing in schizophrenia: trait or state marker?
B. F. O'Donnell et al. found impaired discrimination performances at low and medium spatial frequencies in patients with schizophrenia. In this study, the authors replicated this finding in a group of remitted, unmedicated, and highly functioning outpatients with spared IQ and attentional functions. However, the deficit was restricted to low spatial frequencies (0.5 cycles/degree), which suggests that this deficit is a trait marker of schizophrenia.
Kiss
Imre
I
Department of Psychiatry, University of Szeged.
Janka
Zoltán
Z
Department of Psychiatry, University of Szeged.
Benedek
György
G
Department of Physiology, University of Szeged.
Kéri
Szabolcs
S
Department of Psychiatry and Department of Physiology, University of Szeged.
D000328:Adult; D004192:Discrimination, Psychological; D005260:Female; D006801:Humans; D008297:Male; D010468:Perceptual Disorders / Q000175:diagnosis / Q000209:etiology*; D012559:Schizophrenia / Q000150:complications*; D012720:Severity of Illness Index; D013028:Space Perception; D011795:Surveys and Questionnaires