The link between depression and phobic responding is poorly understood
. Forty-eight spider phobics were exposed to videotaped spider sequenc
es whilst in relatively depressed or relatively elated moods, then pre
sented the same stimuli whilst in a neutral mood. Results indicated th
at depressed mood increased initial responding, and was associated wit
h greater return of fear during the second (non-mood) sequence. The re
turn of fear was not attributable solely to differential habituation r
ates during the first sequence, suggesting that the differences observ
ed may have been due to cognitive effects.