Intro to Cognitive Psychology Flashcards
what is cognitive psychology?
the scientific study of thought, experience, and perceptions
what approach does cognitive psychology take?
information-processing approach
what does the information-processing approach involve?
the stimulus enters the brain and is processed serially through different modules, towards a decision and motor response
what is the mind viewed as?
a stimulus response machine, by receiving electrical signals from sensory systems to perceive information
bottom-up processing
directly caused by the stimulus
top-down processing
influences of an individual’s mind and prior experiences
how are conscious experiences represented?
activity of many neurones
evidence of neurones representing complex information
grandmother cells having ‘preferred’ stimuli
rate coding
greater rate of neurone’s response
temporal coding
greater synchrony of several neurone’s responses
how many neurones are approx. in the human brain?
80 billion
what percent of brain cells are neurones?
50%
electrophysiology measures…
electrical activity within brain cells by single-cell recordings
- EEG
- ERPs
EEG measures…
real-time neural activity via electrodes on the scalp
ERPs…
generate average EEG waveforms to compare across psychological conditions