title: Differential roles of low and high spatial frequency content in abnormal facial emotion perception in schizophrenia.
abstract: While schizophrenia patients are impaired at facial emotion perception, the role of basic visual processing in this deficit remains relatively unclear. We examined emotion perception when spatial frequency content of facial images was manipulated via high-pass and low-pass filtering. Unlike controls (n=29), patients (n=30) perceived images with low spatial frequencies as more fearful than those without this information, across emotional salience levels. Patients also perceived images with high spatial frequencies as happier. In controls, this effect was found only at low emotional salience. These results indicate that basic visual processing has an amplified modulatory effect on emotion perception in schizophrenia.
authors.affiliation: Mailman Research Center, McLean Hospital, Belmont, MA 02478, USA.
authors.forename: Ryan
authors.initials: R
authors.lastname: McBain
authors.forename: Daniel
authors.initials: D
authors.lastname: Norton
authors.forename: Yue
authors.initials: Y
authors.lastname: Chen
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D004644:Emotions; D005149:Facial Expression; D005260:Female; D006801:Humans; D007360:Intelligence / Q000502:physiology; D008297:Male; D008875:Middle Aged; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010468:Perceptual Disorders / Q000209:etiology*; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology; D012559:Schizophrenia / Q000150:complications*; D013028:Space Perception / Q000502:physiology*; D013997:Time Factors