Cognitive Psychology
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Chapter 3 Cognitive Psychology Cognitive Psychology Exam 1 Week 7 & 8 Practice
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A branch of psychology concerned with the scientific study of
What is cognitive psychology? the mind - that includes such mental processes as perception,
attention, memory, language, problem solving, etc.
How is it possible to study the We can study cognition indirectly by observing and measuring
inner workings of the mind, behavior.
when we can't really see the
mind directly?
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Simple reaction time
-When light flashes, push button
Choice reaction time
Donders' reaction time
-When light flashes on left or right, push left or right button.
experiment
Average Choice RT 250 ms
- Average Simple RT 150 ms
= 100 ms to make a decision
Present a list of nonsense words:
DAX
BIV
LUH
Ebbinghaus' memory
etc.
experiment
Recorded number of trials to learn the list initially
After a delay, recorded how many repetitions it took to relearn
list - this was then converted into percent savings
Used introspection to study the mind.
Wundt's psychology laboratory
(1879) Introspection - technique of breaking down psychology
experiences into primary sensations.
, A movement in psychology that emphasized the study of
behavior over inner mental processes.
Behaviorism (John Watson)
Watson believed that psychology's goals should be to predict
and control behavior and not study the inner workings of the
mind.
Watson's Little Albert -Showed certain behaviors can be socially taught and modeled
Experiment
Focuses on how behavior is strengthened by the presence of
Operant conditioning
positive reinforcement.
Mental representation which serves an individual to acquire,
Tolman's cognitive map code, store, recall, and decode information about the relative
locations in their everyday or metaphorical spatial environment
In Verbal Behavior Skinner asserted that children learn language
through operant conditioning.
Skinner on Language Acquisition
Child sees a dog, says "Doggie!" Parents say, "Right, that's a
doggie!" Child's verbal behavior reinforced by parents.
Chomsky attacked Skinner's "Verbal Behavior"
Said humans are born with the knowledge of how to acquire and
use language.
Chomsky on Language
Chomsky's pointed out that children say things that they've never
Acquisition
heard before or been reinforced for before like, "I hitted the ball"
or "I sawed the kitty" or "I hate you Mommy!"
Chomsky believed that language emerges through an inborn
biological program.
Information-Processing
Approach
The study of the physiological basis of cognition.
Cognitive neuroscience
Physiological means the internal workings of the body.
Neuron = individual cell of the brain
Basic structure of a neuron
Brief electrical charge that travels down the axon
Action potential
Electrical impulse, All-or-nothing, Intensity is always the same.
The intensity of action potentials is
always the same but the rate of firing
Rate of Firing
changes how strong the signal is.