12. Motivation - Motivation Motivation: vigor and...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Motivation Motivation: vigor and persistence of goal directed behavior, helps move us towards our goals Evolutionary Theory: motivation plays a significant role in adaptation; social need to affiliate, share resources, provide protection, procreation Biological Needs/Motivations Homeostasis: tendency for the body to want to maintain a state of constancy Hunger/Food: energy is necessary for maintenance and growth. Search for a balanced diet Hypothalamus: primary structure of the brain which signals hunger and satiation Lateral (near side): turns hunger 'on'. Stimulation yields increased eating. A lesion or damage can cause starvation Ventromedial (lower, middle) : is the hunger 'off'. Stimulation stops eating. Lesion or damage can cause voracious eating. Various Factors which Impact Eating Behaviors Biological Factors Genetics influence metabolism Bodily sensations: growl, distention Chemical signals to the body Genetic mapping of 'obesity genes' Social Factors Environmental influences on eating behavior Complex and multiply determined Eat more in groups Expectations and memory of meals Palatability Social interactions Psychological Factors Thinking about food and what it 'means' Learned food habits/preferences Memories associated with food Belief and feelings regarding body image Cultural variations: robust = higher class Food as a substitute for love, sex Obesity rates currently based on Body Mass Index. An adult who has a BMI between 25 and 29.9 is overweight Adult whose has a BMI of 30+ is obese CDC 2005-2006 data 33.3% of men and 35.6% of women were obese Rates of overweight and obese remain high with 31.9% of children and adolescents aged 2 through 19 years at or above the 85th percentile of the 2000 BMI-for-age growth charts....
View Full Document

This note was uploaded on 01/04/2012 for the course PSYCH 111 taught by Professor Schreier during the Fall '08 term at University of Michigan.

Page1 / 39

12. Motivation - Motivation Motivation: vigor and...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online