Citation

Arrais KC, Machado-de-Sousa JP, Trzesniak C, Filho AS, Ferrari MC, Osório FL, Loureiro SR, Nardi AE, Hetem LA, Zuardi AW, Hallak JE, Crippa JAS. J. Psychiatr. Res. 2010; 44(8): 535-540.

Affiliation

Department of Neuroscience and Behavior of the Ribeirão Preto Medical School, University of São Paulo, Brazil.

Copyright

(Copyright © 2010, Elsevier Publishing)

DOI

10.1016/j.jpsychires.2009.11.003

PMID

19962717

Abstract

BACKGROUND: It has been suggested that individuals with social anxiety disorder (SAD) are exaggeratedly concerned about approval and disapproval by others. Therefore, we assessed the recognition of facial expressions by individuals with SAD, in an attempt to overcome the limitations of previous studies. METHODS: The sample was formed by 231 individuals (78 SAD patients and 153 healthy controls). All individuals were treatment naïve, aged 18-30years and with similar socioeconomic level. Participants judged which emotion (happiness, sadness, disgust, anger, fear, and surprise) was presented in the facial expression of stimuli displayed on a computer screen. The stimuli were manipulated in order to depict different emotional intensities, with the initial image being a neutral face (0%) and, as the individual moved on across images, the expressions increased their emotional intensity until reaching the total emotion (100%). The time, accuracy, and intensity necessary to perform judgments were evaluated. RESULTS: The groups did not show statistically significant differences in respect to the number of correct judgments or to the time necessary to respond. However, women with SAD required less emotional intensity to recognize faces displaying fear (p=0.002), sadness (p=0.033) and happiness (p=0.002), with no significant differences for the other emotions or men with SAD. CONCLUSIONS: The findings suggest that women with SAD are hypersensitive to threat-related and approval-related social cues. Future studies investigating the neural basis of the impaired processing of facial emotion in SAD using functional neuroimaging would be desirable and opportune.

Language: en