Introduction to cognitive research Flashcards
week 1
what factors are involved in cognition?
perception, problem solving, learning, attention, thinking, memory, reasoning, language.
what is the history of cognitive psychology?
the concept began late 1950s/ early 1960s as it moves away from the behaviourism concept.
what is behaviourism?
the scientific study of observable behaviour.
rejected the use of introspections.
1910
what is cognitive psychology?
1960
- the observation of internal, mental processes used in perception, comprehension, remembering and thinking.
- uses behavioural evidence to understand cognition
- uses proxy measures.
- uses studies in laboratories with high levels of control.
- involved in making sense of the environment and taking action.
- our cognitive processes often occur rapidly and are below our level of consciousness- hard to make sense of the processes if we are consciously aware of them.
what are proxy measures?
a way of indirect measurements of what the researcher is trying to understand (human behaviours to make sense of human cognition)
what is cognitive neuropsychology?
study brain damaged patients to apply the findings to healthy individuals so they can understand “normal” cognition.
understand how brain damage can change memory.
what is cognitive neuroscience?
using evidence from behaviour AND brain imaging techniques.
helps us understand brain processing and how memory can influence brain activity.
what is computational cognitive science?
the development of computational models to help us understand cognitive processes.
uses algorithms as a computational procedure to provide specific steps to solve problems.
what are the 3 assumptions of cognitive psychology?
- mental processes exist
- mental processes can be studied scientifically (proxy measures)
- humans are active participants in the act of cognitive
what is the cognitive science approach?
- systematic study of people performing tasks to help us understand mental processes
- experiments on healthy people in laboratory based conditions that try to pinpoint one condition.
- uses proxy measures such as response time and accuracy.
explain what the proxy measure of accuracy is:
- measuring proportions of a response that are correct
- e.g.: remembering sequence of 8 numbers (we remember the beginning and end more than the numbers in the middle)
- the proxy measure helps us to understand the mental processes without studying it directly.
explain what the proxy measure response time (RT) is:
- a measure of time elapsed between a stimulus and a person’s response to that stimulus.
- e.g.: answering a series of question (5x2=?/ 9x16=?)
what are the strengths of the cognitive science approach?
- provides a foundation for understanding human mental processes
- continues to inform theorising in contemporary research across disciplines
- the source of most theories and tasks used by other approaches.
what are the weaknesses of the cognitive science approach?
- task impurity problems: most tasks involve multiple cognitive processes- hard to be sure we are only measuring one. (e.g.: stroop experiment).
- lacks ecological validity (peoples behaviour may be different form every day life)
- lab based measures provide indirect evidence because they are highly controlled it may not be the best way to measure a concept.
- paradigm specificity: findings on one task don’t always generalise to other similar tasks (task specific).
what is meta-theory?
- scientists need more than just questions when deciding what to experiment and how to experiment a concept.
- a set of assumptions and guiding principles to generate research questions that the researchers are interested in finding answers to.
- raises the questions of: where to start? what to look for? what to be aware of?