Rjr. Blair et al., A selective impairment in the processing of sad and fearful expressions inchildren with psychopathic tendencies, J ABN C PSY, 29(6), 2001, pp. 491-498
The processing of emotional expressions is fundamental for normal socialisa
tion and interaction. Reduced responsiveness to the expressions of sadness
and fear has been implicated in the development of psychopathy (R. J. R. Bl
air, 1995). The current study investigates the sensitivity of children with
psychopathic tendencies to facial expressions. Children with psychopathic
tendencies and a comparison group, as defined by the Psychopathy Screening
Device (PSD; P. J. Frick & R. D. Hare, in press), were presented with a cin
ematic display of a standardised set of facial expressions that depicted sa
dness, happiness, anger, disgust, fear, and surprise. Participants observed
as these facial expressions slowly evolved through 20 successive frames of
increasing intensity. The children with psychopathic tendencies presented
with selective impairments; they needed significantly more stages before th
ey could successfully recognise the sad expressions and even when the fearf
ul expressions were at full intensity were significantly more likely to mis
take them for another expression. These results are interpreted with refere
nce to an amygdala and empathy impairment explanation of psychopathy.