2947651
| 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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