Lecture 1 Flashcards
Wihelm Wundt & Structuralism
Used rigorous introspection to study throught. Decomposed thought into simpler components: emotion, perception and sensation.
First attempt to study thought scientifically, but problems with replication, generality of findings and complex cognitions. `
Watson, Skinner & Behaviourism
Reaction to limits of introspection. Focus only on the observable causes of behaviour associations between stimuli and response.
Interested in applying pschology.
Koffka, Kohler & the Gestalt approach
Reaction to limits of introspection. Focus only on the observable causes of behaviour, associations between stimuli and responses.
Interested in applying psychology.
Freud, Adler, Jung, & the Psychodynamic approach.
Reaction to behaviourist approach - focus on the unconscious motivations as causes of behaviour.
Cognitive psychology- information processing approach
Rekingled scientific interest in unobservable mental processes (attention, signal and detection).
Behaviourism inadequate to address these issues. New paradigm developed, people seen as active information processors, cognition conceptualised as a series of information processing stages
What is the mind/body problem?
Refers to the idea that two people can have the same thought but may have different patterns of neural activity
Type identity theory
A mental state is equivalent to a specific pattern of neural events
Token identity theory
A mental state maps onto a variety of different neural events
Functionalism
Draws a distinction between:
structure of mental state (neural activity)
Function of a mental state (the consequences of a mental state)
What is the essence of cognitive psychology?
About developing a functional explanation of mental processes
Use the eye as an example of how brains are like computer hardware and cognition is software.
Image viewed by eye
Cognitive system processes the information
Output through actions
Sensory information is transformed into internal representation:
Cognition refers to the processing of internal representations
Cognitive psychology is concerned with understanding the processes (Software)
Describe the computational metaphor
The mind contains symbolic representations:
something that stands for or represents something else e.g. in computers binary numbers represent specific pieces of information
There is a limited and well-defined set of symbols
These symbolic representations are stored in memory
How is cognition the product of operations?
Internal processes that act on symbolic representations
In computers these are functions (copy, insert)
Operations are deployed according to rules that are also stored in memory
What are the three levels of description?
Computational theory
Representation and algorithm level
Hardware level