Chapter 1 - Intro to Cognitive Psych Flashcards
Cognitive Psychology
the scientific study of how the mind encodes, stores, and uses
information; the study of cognition
Speech Perception
understanding language and requests
Objection Recognition
the ability to recognize objects based on visual input
Attention
concentration/awareness of something to the exclusion of other stimuli
Memory Retrieval
stage of memory in which the information saved in memory is recalled
Judgement
process of making decisions and form conclusions
Reasoning
process of thinking critically towards the situation of a problem based on previous experiences and observations
Speech Production
process by which thoughts are translated into speech
History of Cognitive Psychology - Introspection
19th century
subjects were trained to report their conscious experiences, and used their reports to decompose mental processes
but introspection is empirical, not objective and there is no way to verify by independent observer
History of Cognitive Psychology - Behaviorism
early 20th century
Watson and later Skinner argued that psychology should be restricted to the study of observable
events
behaviorism used animal models
focused on classical and operant conditioning
Classical Conditioning
learned association between stimuli in the environment
Conditioned Stimulus
elicits response due to learned association with unconditioned
stimulus
Unconditioned Stimulus
naturally elicits response
Operant Conditioning
learned association between behaviors and outcomes
behavior followed by reward - behavior increases in frequency
behavior followed by punishment - behavior decreases in frequency
Limits of Behaviorism
1950’s
could not explain all aspects of behavior without evoking mental events
“Cognitive Maps”
Edward Tolman
found evidence that rats developed “cognitive maps” when in a maze to find cheese; rats understood layout of maze
performed sequences of behaviors without being rewarded
History of Cognitive Psychology - Cognitive Revolution
late 1950’s
Chomsky criticized Skinner’s book on language development and behaviorism
Skinner claimed that children learned rules of language through operant conditioning, they were rewarded for grammatically correct sentences; punished for incorrect sentences
Chomsky argued behaviorism couldn’t explain the development of language because children were not always corrected for incorrect language and there wasn’t enough systematic feedback for children to learn
Chomsky argued that all humans are born with cognitive mechanism for learning language
The Mind as an Information Processor
information permeates the social world and many fields of study
understanding the rules and systematic processes
the mind uses to encode, transform, store, interpret, and act on information
Representations
encoded and stored information about the environment
takes a different form from the original object, but can capture aspects and information about the original
Mental Representations
how your mind encodes and stores information about environment
Computations
processing steps performed on representations
Cognition at Multiple Levels
- computational level analysis: seeks to understand what the mind is trying to compute and why
- algorithmic level of analysis: aims to understand the rules, mechanisms, and representations the mind
uses - implementational level of analysis: seeks to know what happens in the brain to enable cognition
Data in Cognitive Psychology
observing people’s behaviors
behavioral measures are used because people’s mental processes can not be directly observed
use observable behaviors to make inferences about mental processes
Data in Cognitive Neuroscience
attempt to use information about behavior AND the brain to understand human cognition
Data in Cognitive Neuropsychology
attempt to understand human cognition by studying brain-damaged patients (tests on neurologically impaired patients)
typically use case studies of individuals
Reaction Time
how quickly someone performs a task
provides a measure of difficulty, number of mental steps involved, and interference in processing
Accuray
how many errors someone makes when performing task
more difficulties, more steps, and more interference can lead to more errors
Problem with Reaction Time and Accuray
can’t observe mental processes directly