Textbook Notes (363,597)
Canada (158,456)
Psychology (9,578)
PSYB64H3 (197)
Chapter 14

Chapter 14 Textbook Notes

6 Pages
Unlock Document

University of Toronto Scarborough
Janelle Leboutillier

PSYB64: An Introduction to Physiological Psychology Chapter 14: Emotion, Reward, Aggression, and Stress Emotion - Emotion = has 2 major components J physical sensation (quick heartbeat) and a conscious subjective experiencefeeling (scared) - Emotions usually show valence = positiveattractive or negativeaversive reaction to objectevent Evolution of Emotion - Charles Darwin studied facial expressions in humansprimates J concluded that emotional expression much have evolved - Advantages of emotion = contribution of general arousal to trigger response o Can also be a disadvantage because when emotions are too high, response can be affected J e.g. being really stressed out and do bad on exam - Emotions manage approachwithdrawal behaviours to environmental stimuli J advantage for survival - Emotions enhance our communication J nonverbal communication = use of facial expressions, gestures, and body language to communicate ideasfeeling Emotion Expression and Recognition - Humans pay most attention to facial expressions J mostly in the eyes - Movement of human face controlled by 2 cranial nerves o facial nerve (cranial nerve VII) J controls superficial muscles attached to skin primarily responsible for expression o trigeminal nerve (cranial nerve V) J controls deeper facial muscles attached to bones of head J for chewing and speaking - facial nerves have 5 major branches J serve different portions of face - facial nerves originate in 2 facial nuclei = located on either side of the midline in the pons, controls facial nerves ~}L[ }KKL] ] ly with each other) o facial nuclei receives input from primary motor cortex in precentral gyrus of frontal lobe and from several subcortical motor areas rd - uppers 3 of face controlled differently than lower 2 thirds of face o upper 3 = input from both ipislateral and contralateral facial nerves o lowers 2 thirds = input from contralateral facial nerve - 2 major pathways control facial expression: o Input from motor cortex responsible for voluntary expression o Subcortical system = for spontaneous expression Volitionalvoluntary facial paresisparalysis = condition where ability to express voluntary emotion is impaired 9l]LZ}L[Z]ZZ = impairment in subcortical motor structures, substantia nigra, and basal ganglia J lose ability to smile spontaneously but can smile on command = aka emotional facial paresis because of impair spontaneous emotions - Darwin said emotions have strong biological basis - Some emotional are universal across all cultures = anger, sad, happy, fear, disgust, surprise, contempt, embarrassment www.notesolution.com
More Less

Related notes for PSYB64H3

Log In


Don't have an account?

Join OneClass

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

Sign up

Join to view


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.