Efficacy of identifying neural components in the face and emotion processing system in schizophrenia using a dynamic functional localizer
| Autor: | Giuseppe Iaria, Aiden E. G. F. Arnold, Vina M. Goghari |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Schizophrenia (object-oriented programming) Emotions Neuroscience (miscellaneous) behavioral disciplines and activities Brain mapping Developmental psychology 03 medical and health sciences 0302 clinical medicine Neuroimaging Face perception Humans Radiology Nuclear Medicine and imaging Brain Mapping Facial expression Brain Cognition Superior temporal sulcus Middle Aged Fusiform face area Amygdala Magnetic Resonance Imaging Temporal Lobe 030227 psychiatry Facial Expression Psychiatry and Mental health Schizophrenia Female Psychology Facial Recognition 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Psychiatry Research: Neuroimaging. 248:55-63 |
| ISSN: | 0925-4927 |
| DOI: | 10.1016/j.pscychresns.2016.01.007 |
| Popis: | Schizophrenia is associated with deficits in face perception and emotion recognition. Despite consistent behavioural results, the neural mechanisms underlying these cognitive abilities have been difficult to isolate, in part due to differences in neuroimaging methods used between studies for identifying regions in the face processing system. Given this problem, we aimed to validate a recently developed fMRI-based dynamic functional localizer task for use in studies of psychiatric populations and specifically schizophrenia. Previously, this functional localizer successfully identified each of the core face processing regions (i.e. fusiform face area, occipital face area, superior temporal sulcus), and regions within an extended system (e.g. amygdala) in healthy individuals. In this study, we tested the functional localizer success rate in 27 schizophrenia patients and in 24 community controls. Overall, the core face processing regions were localized equally between both the schizophrenia and control group. Additionally, the amygdala, a candidate brain region from the extended system, was identified in nearly half the participants from both groups. These results indicate the effectiveness of a dynamic functional localizer at identifying regions of interest associated with face perception and emotion recognition in schizophrenia. The use of dynamic functional localizers may help standardize the investigation of the facial and emotion processing system in this and other clinical populations. |
| Databáze: | OpenAIRE |
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