Class Notes (834,627)
Canada (508,661)
Psychology (3,518)
PSY270H1 (202)
Lecture

Lecture 2

3 Pages
74 Views
Unlock Document

Department
Psychology
Course
PSY270H1
Professor
Susanne Ferber
Semester
Fall

Description
Lecture Two Importance of examining Behavior: – properties of behavior can tell us about the difficulty/complexity of a problem → make inferences about how processing may operate – reaction time: the amount of time it takes to process an input and generate a response/output Cognitive Models: – attempt to describe the steps associated with certain features of cognition (ie: memory) – should be clearly specified & realistic + parsimonious (simple as possible) + falsifiable (test whether it's working or not) + linked to our knowledge of the brain Lesion Studies: – Moniz's work led to Freeman's widespread use of frontal lobotomy to “cure” psychotic patients – Discovery of Kluver-Bucy syndrome with damage to bilateral temporal lobe resection (including amygdala) + problems: hyper-sexual; try to copulate with other species. – neurophysiological studies allow the studying of the brain in a way that is not allowed in humans + can map how areas respond to stimulus input or examine how ablation of a specific brain region impairs performance Neuroimaging: – basic (experimental) + normal brain structure, function + effect of experimental manipulation – diagnostic (clinical) + anatomical localization + pathophysiology Examining the Brain: – structural techniques: + CT, sMRI, DTI – functional techniques: + EEG, PET, fMRI – computerized axial tomography (CT) + 3-D image projected on computer screen – structural MRI + uses magnetic field + radio wave is applied to the brain + can see grey and white matter – diffusion tensor imaging (DTI): + mapping of diffusion process of molecules (mainly water) in biological tissues, in vivo, and non-invasively + water molecules used as probe to reveal microscopic details about tissue architecture + person shaked in order to move the water around – electroencephalography (EEG): + records electrical activity along the scalp + measures voltage fluctuations resulting from ionic current flows within the neurons of the brain + multiple electrodes placed on the scalp – event-related potentials (ERPs): + measures brain response that's the direct result of a specific sensory, cognitive, or motor event + any stereotyped electrophysiological response to a stimulus + time-locked average EEG response + noise filtering and
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