Day 1 - Magazine Training - September 19, 2012
Goal:
To magazine
train my rat, Monica. Magazine training
is a form of classical conditioning in which I turn a previously neutral
stimulus, the light/sound of the food magazine, into a secondary reinforcer. My goal is to condition Monica to approach
the food magazine each time she hears the sound and sees the light bulb flash.
Procedure:
In the last
week leading up to training, Monica was food deprived to almost 87% of her
starting body weight. Starting at 246 grams on September 12th, she had lost 33 grams, and weighed 213 grams at the end of her first
training session on September 19th. Each
of my daily training sessions starts at 8:30 in the morning; however, since
this was the first day, I trained with Dr. Trench at 2:30 during our weekly lab
time. To start magazine training, I
pressed the hand switch when she was near the magazine. I waited for her to eat the pellet, and then
pressed the hand switch again. This
training continued for about 8 to 10 minutes until the power turned off. Monica was removed from the operant box, so
she would not get confused by not getting any reinforcement. The power came back on quickly, and the
session continued for 15 more minutes.
55 pellets were delivered in the second half of training, and
approximately 20 pellets before the power went off.
Results:
Monica
spent a lot of time exploring the box today.
She sniffed the corners and reared up on the walls. She exhibited a variety of behaviors during
the session, which will be helpful in the shaping process. I pressed the hand switch multiple times in a
row when she was paying attention to the magazine in hope of speeding up the
training. By the end of the session, she was paying more attention to the
magazine than the rest of the box, but she would not immediately move to the
magazine if she heard the sound while on the opposite side of the box. Even though she was not trained to press the
bar yet, Monica pressed the bar 6 times during the first training session. Although this was just coincidence, I believe
she will understand the association between the bar press and the food in no time!
Discussion:
Because
Monica does not respond to the light/sound of the food magazine every time she
hears it, Monica has not completely mastered magazine training yet. Monica’s behavior was similar to that of the
virtual rat, Sniffy; however, Monica learned about the magazine much quicker
than Sniffy. This may have been because
I had already had practice with Sniffy, Dr. Trench was coaching me through the
process, or Monica is just super smart. (most likely the last). I will continue at the beginning of the
session tomorrow, but I will also begin to reinforce her when she turns her
head to the left from the magazine in an attempt to shape her behavior.
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