Face perception in schizophrenia: a specific deficit

@article{Megreya2016FacePI,
  title={Face perception in schizophrenia: a specific deficit},
  author={Ahmed M. Megreya},
  journal={Cognitive Neuropsychiatry},
  year={2016},
  volume={21},
  pages={60 - 72}
}
ABSTRACT Introduction. Patients with schizophrenia have a large-scaled and severe cognitive impairment. This study examines whether a well-established deficit in face recognition in schizophrenia is a part of this general cognitive impairment or is specific to faces per se. Method. The differential deficit in matching upright faces as compared with two psychometrically matched control tasks (matching inverted faces and matching none-face objects) was assessed in two well-matched samples of… Expand
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References

SHOWING 1-10 OF 62 REFERENCES
Face and body perception in schizophrenia: A configural processing deficit?
TLDR
Overall, the data point towards reduced configural processing, not only for faces but also for bodies and cars in individuals with schizophrenia. Expand
Face processing in schizophrenia: defining the deficit
TLDR
The pattern of results suggests that deficits in face processing reflect three wider neuropsychological impairments: a drug-related impairment of visual imagery, and disease-related impairments of semantic retrieval and executive function. Expand
Face recognition in schizophrenia disorder: A comprehensive review of behavioral, neuroimaging and neurophysiological studies
TLDR
The key conclusions are that visual perception deficit in schizophrenia patients: are not specific to faces; are most often present when the cognitive and perceptual demands of the tasks are important; and seems to worsen with the illness chronification. Expand
Dysfunction in Configural Face Processing in Patients With Schizophrenia
TLDR
The result suggests that the face-recognition deficit in schizophrenic patients is due to specific impairments in configural processing of faces. Expand
Visual scanpaths in schizophrenia: is there a deficit in face recognition?
TLDR
The results suggest that schizophrenic individuals have a specific deficit in the visual scanning of faces, that is a distinct case of a fundamental problem in complex object processing. Expand
Facial emotion processing in schizophrenia: a non-specific neuropsychological deficit?
TLDR
There is no deficit in identifying facial emotions in schizophrenia, and the impairment found in naming familiar faces is consistent with other evidence of semantic memory impairment in the disorder. Expand
Configural processing in face recognition in schizophrenia
TLDR
The results suggest that people with schizophrenia rely on configural information to recognise photographs of faces, with a disproportionate effect of inversion on faces relative to other objects. Expand
What's in a face? Effects of stimulus duration and inversion on face processing in schizophrenia
TLDR
The findings show that patients have difficulty integrating visual information as shown by increased duration thresholds, however, when faces were presented at these longerduration thresholds, patients showed the same relative processing ability for upright vs. inverted faces as controls, suggesting preserved intrinsic processing within cortical face processing regions. Expand
Face processing in schizophrenia: Parallels with the effects of amygdala damage
TLDR
Examination of performance of schizophrenic individuals on tasks which previous studies have shown to be sensitive to amygdala damage showed impairment in schizophrenia of some functions thought to rely on the amygdala, however, examination of single cases showed that some individuals with schizophrenia were not impaired on any amygdala-related functions. Expand
Are patients with schizophrenia impaired in processing non-emotional features of human faces?
TLDR
This review aims to disentangle the literature by focusing on the performance of patients with schizophrenia in a range of tasks that required processing of non-emotional features of face stimuli, and exploring whether observed deficits are best considered as “face-specific”. Expand
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