246 L1

mark k
Flashcards by mark k, updated more than 1 year ago
mark k
Created by mark k almost 6 years ago
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PSY246 Flashcards on 246 L1 , created by mark k on 06/15/2015.

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Question Answer
Information processing models: (2 distinctions 2 sub distinctions) -Bottom up/Top down -Serial/Parallel =Cascaded (overlapping serial) =Discrete serial
Bottom-up -External stimulus causes internal cognitive process
Top-down Processing of external info is influenced by indiv's prior knowledge & expectation
Approaches to study of cognition (4) -Cognitive psychology -Cognitive neuroscience -Computational Neuroscience -Cognitive Neuropsychology
Experimental variables (2) Dependent variable: -variable being studied, the response Independent variable: -variable being manipulated to cause changes
Computational modelling (+2 details) Programming computers to mimic aspects of cog. functioning -Compare model's behaviour to human -Requires Rs to make assumptions explicit
Cognitive Neuroscience (6 methods) Study of human brain & cognition -Single event recordings -PET -TMS -ERPs -MEG -fMRI (BOLD)
EEG & ERP Electroencephalogram & Event-related potentials -Measures electrical activity in brain through electrodes on skull -High Temporal R -Low Spatial R -Requires many trials -Cannot see deep into brain
fMRI functional Magnetic Resonance Imaging (BOLD signal) -Measures differences in oxygenation in blood -Active areas of brain need more oxygen -High spatial R -Low temporal R
MEG Magneto-encephalography -SQUID measures magnetic fields generated by the brain -High temporal R -Moderate spatial R Extremely expensive, New and incompletely understood
Cognitive Neuropsychology Study cognition by looking at impaired patients
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