Lab 5: Sniffy
This lab deals with conditioning.
The two types of conditioning are classical and operant
In classical conditioning, the conditioned stimulus is repeatedly paired
with the unconditioned stimulus, to eventually produce a conditioned response.
example, in a dog, food, the unconditioned stimulus, produces salivation, the
Now, if the sound of a bell, the conditioned stimulus, was
repeatedly paired with the food, the unconditioned stimulus, one would hope to
eventually produce a conditioned response, that is salivation at the sound of the bell.
operant conditioning, consequences of behavior are manipulated in order to increase or
decrease the frequency of an existing response or to shape a new response.
In this lab we
will be using classical conditioning, and the process of shaping, or gradually molding a
desired response through reinforcement.
There are four schedules of reinforcement:
fixed-ratio, variable-ratio, fixed-interval, and variable-interval.
This lab deals with the
fixed-ratio schedule of reinforcement, where a reinforcer is given after a fixed number of
correct, non-reinforced responses.
Computer-animated Sniffy, and a male college student.
A computer, and the Sniffy computer program.
Open up the computer program called “Sniffy the Virtual Rat,” by double
clicking the Sniffy icon on the desktop. Set the parameters of the experiment by choosing
Design operant experiment
Now, observe the new window