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Lecture

PSY270H1 Lecture Notes - Transcranial Magnetic Stimulation, Artificial Neural Network, Carl Wernicke


Department
Psychology
Course Code
PSY270H1
Professor
Susanne Ferber

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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
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