Early Laboratory Research
The early work of Richard Solomon and his colleagues provides
an elegant, yet often overlooked, animal behavioural
model of OCD (6), Solomon and others worked with dogs in
shuttle boxes (which were small rooms divided in 2 by a hurdle
over which the animal could jump). Each half of the shuttle
box was separately furnished with an electric grate that could
be independently electrified to give the dog an electric shock
through its paws. In addition, a light served as a conditioned
stimulus. The procedure for producing the compulsive rituallike
behaviour was to pair the light with an electric shock (the
shock occurred 10 seconds after the light was turned on). The
dog soon learned to jump into the other compartment of the
shuttle box, which was not electrified, once he had received
the shock. After several trials, the dog learned to successfully
avoid the shock by jumping to the nonelectrified compartment
in response to the light (that is, within 10 seconds). In other
words, the experimenter produced a conditioned response to
the light, namely, jumping from one compartment ofthe box
to the other.
Early Laboratory ResearchThe early work of Richard Solomon and his colleagues providesan elegant, yet often overlooked, animal behaviouralmodel of OCD (6), Solomon and others worked with dogs inshuttle boxes (which were small rooms divided in 2 by a hurdleover which the animal could jump). Each half of the shuttlebox was separately furnished with an electric grate that couldbe independently electrified to give the dog an electric shockthrough its paws. In addition, a light served as a conditionedstimulus. The procedure for producing the compulsive rituallikebehaviour was to pair the light with an electric shock (theshock occurred 10 seconds after the light was turned on). Thedog soon learned to jump into the other compartment of theshuttle box, which was not electrified, once he had receivedthe shock. After several trials, the dog learned to successfullyavoid the shock by jumping to the nonelectrified compartmentin response to the light (that is, within 10 seconds). In otherwords, the experimenter produced a conditioned response tothe light, namely, jumping from one compartment ofthe boxto the other.
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