Class Notes (836,562)
Canada (509,854)
Psychology (3,518)
PSY270H1 (202)
Lecture

Lecture One

4 Pages
76 Views
Unlock Document

Department
Psychology
Course
PSY270H1
Professor
Susanne Ferber
Semester
Fall

Description
Lecture One: Cognitive Psychology – “the scientific study of the processes and products of the human mind” – 1. absorbing (sensation) + 2. processing (perception, computations, integration) + 3. responding (decisions and action) Method of Inquiry: Introspection – “internal perception” + self-examination of one's conscious thoughts and feelings + self-observation of one's mental state ;; human self-reflection, contrasted with external observation Limitations: – difficult to verify (ie: private events) – not always aware – look at end product, not the process Method of Inquiry: Behaviorism – called learning perspective (any physical action is a behavior) based on proposition that all things that organisms do – acting, thinking, feeling – can and should be regarded as behaviors + individuals response to different environmental stimuli shapes our behaviors – we can observe the inputs to and outputs from the mind (behavior) – psychology → science of behavior + the mind is unobservable ;; should not be a target of inquiry Limitations: - cannot account for creativity, or the learning of language (Noam Chomsky) – Limiting science to only the observable is a bad idea Method of Inquiry: Cognitivism – we can make inferences about mental processes (cognitive) – Information processing perspective: + input (sensory) + processes (computations) + output (motor commands) – Cybernetics: + artificial neural networks + study of structure of regulatory systems – Theory of computations – Digital computer + “Von neumann machine” – we can localize the workings of the mind (physiology view of stimulus/input & response/output) Evidence of localization of function – Paul Broca + left frontal lobe (location) + damage known as Broca's aphasia + result: non-fluent output, intact comprehension – Carl Wernicke: + location: left temporal lobe + damage known as Wernicke's aphasia + result: impaired comprehension, fluent output – Paitent H.M: + suffering from chronic, debilitating epilepsy c + had his bilateral medial temporal lobe resection … something about his hippocampus + result: suffers from profound anterograde amnesia – Callosotomy (Resection of the corpus callosum): + eliminating cross-hemisphere communication + “split-brain” patients + … hemispheric differences in processing? – Wilder Penfield (1891-1976): + cortical ablation (removal/excision) for epilepsy + stimulation of human cortex + sensory and motor homunculi + association areas – Five Lobes of the Brain: + motor/premotor: movements + parietal: somatosensory/visual hallucinations + prefrontal: nothing → “silent cortex” + occipital: visual hallucinations + temporal: visual/auditory hallucinations. Whole memories – Phineas Gage: + had a total ablation of orbitofrontal cortex (OFC) + result: impact on emotion and personality (variable) – Frontal Lobotomies (leucotomies): + neurosurgical procedure, a form of psychosurgery + cuts the connections to and from the prefrontal cortex, the anterior part of frontal lobes of the brain – PET scanner + neurochemicals shown + blood flow and neural activity + produces 3-D/picture of functional processes in the body + detects gamma rays emitted – MRI scanner: + structure and [later] function + visualize internal structures in detail – Transcranial magnetic stimulation + “virtual lesions” + pre-lesion knowledge of ability + cause depolarization/hyperpolarization in the neurons of the brain
More Less

Related notes for PSY270H1

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