Class Notes (834,819)
Canada (508,737)
Psychology (3,518)
PSY270H1 (202)

PSY270H1F Lecture 3

5 Pages
Unlock Document

Kristie Dukewich

PSY270H1F L3, Sept 26, 2012 o When his deficits first appeared, experienced a prolonged period of depression Language internalization in men vs. women: o His experience was very jarring Q: Isnt language more lateralized for men than women? o He keeps writing the same things over & over again A: Most recent publication (meta-analysis) shows that because his memory only lasts about 30s or less there is no significant different lateralization btwn men & Sometimes as little as 7s, only a sentence women Couldnt finish sentences When answering a , often already forgotten it Adaptiveness of being left-handed? He says he never has thoughts 50% of the 12 presidents of the USA since WWII were left- Repeatedly happy to see his wife handed when only 10% of their general population is left- handed. How this relates to memory: 2ndtime Bill Clinton ran, all candidates left-handed Memory is the key to who we are, w/o it we cannot Left-handed pl over-represented in positions of leadership associate info, events, experiences in time Why would left-handers potentially be better leaders? o w/o it there is no coherence to our experience of Possibly related o hemisphere specialization possibly more memory. creative Clives story shows us that memory is incredibly complex Dominant in right hemisphere spatial + global/holistic o Ex. How come he knows how to write but h cant rmbr info See the big picture more anything else? Why can he recognize his wife but cant o process whole picture recognize his kids? Why isnt he surprised to look in the o Possibly could be selected in a small %age of the mirror and see an older version f himself? How can he population because not everyone can be a leader recognize his wifes older face when his memory only lasts 30s? Ch.5: Sensory Memory, Short-term & Working Memory o These are some Qs that will gradually be discovered as A framework for memory we learn more about the brain Sensory memory Short-term memory Memory: (as a thing) the record of info about our past Working memory experiences o complex Ch 6: Distinguishing STM & LTM Process: Mental operations A Framework for Memory o Encoding / Storage / Retrieval of info Sensory = briefest form Prezi ... Modal Model of Memory Proposed by Atkinson & Shiffrin (1968) Computer metaphor structures & operations o 3 types of memory (sensory, stm, ltm) Structural features of the model = skeleton of framework I Clive Wearing provided One of most tragic features in cognitive neuropsychology For each structural: Was in prime of life when herpres simplex virus (causes cold o Format of info what code used to represent that info in sores) invaded his brain swelling damage to dif brain the mind structures o Capacity (how much?) Worst case of amnesia known, lost much of memory, only o Duration (how long?) recognized wife Control processes: active processes controlled by the Lost long-term memory person Lives entirely in present o Ex. Rehearsal to try to facilitate encoding or keep the May have had damage to hippocampus, medial temporal info present lobe, & frontal lobe His caregivers encouraged him to keep a diary, they thought it might help his memory Sensory Memory o I am now really awake he keeps scribbling things ou Briefest memory systems & editing them o Most primitive, based on direct sensory stimulation o Assists in processing sensory infoo Not a signal left over in sensory recs, is in brain Modality-specific o Dif qualities (format of info varies w sensory modality) Ex. Code for audition = auditory o Dif capacities & durations Synaesthesia crossover, some ppl have pathways in brain crossed; of vision & audition generally in LTM Iconic Memory Not about activity of retina Seeing imagine gradually as slit moves over it Studied most since primarily visual animals Anorthoscopic perception: seeing-more-than-is-there Visual based tech developed in last 40yrs o Active reconstruction o Most tech available to us is visual based o Constructing the world, sampling thru eye movements = Visual stimulation captured from retinas o According to retina, saw something that didnt make o Sensation lasts longer than stimulation (persistence) sense Icon longer-lasing mental presentation Info on retina constantly replaced Span & duration? But iconic memory helped to glue together the varied retina info o So iconic memory not based on sensory stimulation of sensory recs, based on mental representation Trans-saccadic memory o Eyes constantly moving o Fixations avg ~ 250ms When we stop to get something on our fovea o Saccades ~ 30ms Jumps btwn fixations Very quick o Iconic memory helps make image coherent, thru: Integration thru object files o Representations of objects independent of specific Partial report method (George Sperling, 1960) location; often tracked by basic characteristics (ex. Colour) Recording letters in an array Cue which row he wa
More Less

Related notes for PSY270H1

Log In


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.