Table 1

Participant characteristics*

CharacteristicHealthy volunteers (n = 30)Patients (n = 30)p value
Age, yr29.51 ± 7.229.46 ± 7.8NS
Female, n (%)22 (73)22 (73)NS
Race, n
 White1419NS
 Black46NS
 Asian82NS
 Hispanic/other43NS
HH SES46.3345.04NS
WASI117.63117.86NS
GAD diagnosis, n (%)8 (27)
SAD diagnosis, n (%)8 (27)
Mixed diagnosis, n (%)14 (47)
LSAS (total)14.67 ± 13.370.79 ± 24< 0.001
STAI24.57 ± 4.641.73 ± 8.2< 0.001
BAI1.23 ± 2.210.17 ± 7.6< 0.001
  • BAI = Beck Anxiety Inventory; GAD = generalized anxiety disorder; HH SES = Hollingshead Social Economic Status; LSAS = Liebowitz Social Anxiety Scale; NS = not significant; SAD = social anxiety disorder; STAI = State­Trait Anxiety Inventory; WASI = Wechsler Abbreviated Scale of Intelligence.

  • * Values are mean ± standard deviation unless otherwise indicated; t tests were 2­sample, 2­tailed, unequal variance.

  • GAD + SAD or GAD + SAD + panic disorder (n = 2 for latter).

  • Administered before scanning.