Class Notes (837,435)
Canada (510,273)
Psychology (2,794)
PS102 (621)
Lecture

Motivation and Emotion Lecture

5 Pages
103 Views
Unlock Document

Department
Psychology
Course
PS102
Professor
Kathy Foxall
Semester
Winter

Description
Instinct Theory • In the early 1900’s, William McDougall proposed that humans were driven by a  variety of instincts.  • There is a serious flaw with instinct theory Drive Theory • When an organism is deprived of something it needs or wants it acts to attain  homeostasis. • Biological needs “drive” an organism to act. Arousal Theory • People seek optimal level of arousal; varies with activity and personality Incentive Theory  motivated by external rewards Evolutionary theories hold that natural selection favors behaviours that maximize  reproductive.  The Motivation of Hunger and Eating: Biological Factors • In the early 1900s, Cannon & Washburn hypothesized that there is an association  between stomach contractions and the experience of hunger. • Research in the 40s and 50s showed that the hypothalamus is important in hunger.  The Motivation of Hunger and Eating: Biological Factors Glucose and digestive regulation – Glucostatic theory – Higher glucose = less hungry – Brain keeps track of fluctuations of glucose – Thought that this is part of the regulation of hunger Hormonal regulation – Insulin and leptin – Insulin makes use of glucose – Seeing and smelling food can release glucose – Leptin = feel full The Motivation of Hunger and Eating: Environmental Factors  Learned preferences and habits – Exposure – When, as well as what  Food­related cues – Appearance, odour, effort required   Stress  – Link between heightened arousal/negative emotion and overeating Eating and Weight : The Roots of Obesity  Evolutionary explanations  Genetic predisposition  The concept of set point/settling point  adoptees resemble biological parents, not adoptive  Twin studies  The concept of set point – fat cell levels  Dietary restraint Anorexia • 1% of adolescent & young females • less than 85% or normal minimum weight • restricting and binging­purging type •
More Less

Related notes for PS102

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit