PSYA01H3 Lecture Notes - Lecture 8: Homeostasis
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Psychology Lecture 8 (Chapter 2: Slide 23-29)
Slide 23: Subjects cannot be coerced to participate into an experiment (as in forced to). Not supposed to
be too ‘in your face’- instead, you have to approach them.
Ex. Of deception- study of prejudice vs. low self-esteem, prejudice highest during lowest point at
economy, like how there was a prejudice against Jews after WW1 in Germany when many were poor.
Study was to watch movies of French-Canadian, and see how far they go to agree on anti-French-
Canadian things. But to test self-esteem, they put them in rooms. The experimenters use slide show
presentations using stacks of slides. They create an accident where the slides fall apart and blame the
subject, then send that subject to the movies when their self-esteem was lowered. In the control room,
it was just a talk, then watch a movie. At the end, a lower self-esteem led to less prejudice.
Problem, you could have gotten the subject angry as well as low-esteemed. The self-esteem could be
longer spanned, or they can be very ticked off because they knew that they didn’t cause the accident,
making the prejudice for the movie much stronger.
Experimenters can lie to you to make the experiment work, as long as it doesn’t ethically offends them
or clears it up afterwards. There can’t be long-term effect and their dignity should be maintained. A
sheet is signed for confidentiality where the participant can withdraw anytime without penalization.
There also needs to be consent for one to participate.
Slide 24: Unnecessary suffering is difficult to label- as long as a procedure is needed for an experiment
(like brain ablation studies, like removing parts of the brain), they can still be performed. How do you
decide when it’s ok to do?
-Applied research: ex a rabbit research in Brunswick U, a study of epilepsy can be done on animals.
Scientists create epileptic animal models (in this case, rabbit) by sending the same pulse that eventually
strengthens and make the rabbits get seizures (when you flip a switch). Then drugs were tested on the
rabbit to see if it helped the seizure. This is ok since it tries to help humanity. easy to argue
-another type of research is about studies that might lead to applied research, but it’s harder to justify.
Simulated rat can be praised, punished, and raised like a rat. This can allow you to train the rat.
Statistics- no calculations in test, but your comprehension about the statistics is asked.
Slide 27: Summarize a set of numbers. The rich set of data is boiled down to certain categories- tables,
histogram, tendency, variability.
Slide 28: Left table is called a frequency chart- it is a count of the numbers.
Right graph- Frequency Histogram. Includes variables (bottom), values- x-axis=age, y-axis=frequency.
Ordinate=y-axis. Abscissa=x-axis. Makes the numbers more plausible to read without losing the raw data
(except of the original order they were recorded). However, it’s not efficient.
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