Br. Rund et al., NO VIGILANCE DEFICIT FOUND IN EITHER YOUNG SCHIZOPHRENIC OR ADHD SUBJECTS, Scandinavian journal of psychology, 39(2), 1998, pp. 101-107
Vigilance deficits have been found in both schizophrenic and ADHD subj
ects. The two patient groups have never been directly compared on any
vigilance measure, however. In the present study 20 early-onset schizo
phrenics were compared to 20 ADHD adolescents on a Degraded Stimulus C
ontinuous Performance Test (DS-CPT). A comparison group of 30 normal a
dolescents was also included. Results showed no significant difference
s between the three groups on any of the DS-CPT measures. Different hy
potheses are put forth to explain the findings, among them that the ta
sk may be insensitive to identifying sustained attention deficits in a
dolescent populations.