APPROACHES- Cognitive Flashcards

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1
Q

What does cognition mean?

A

mental processes

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2
Q

When was this approach developed?

A

1960s

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3
Q

What are the key areas? of cognitive psychology?

A

-perception
-language acquisition
-problem-solving
-attention
-facial recognition

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4
Q

What are the main assumptions?

A

-internal mental processes should be studied scientifically
-they investigate areas of behaviour neglected by behaviourists
-believe that schema are created within the brain based on past experiences and learning directly through our behaviour
-these processes cannot be observed so are studied indirectly by making inferences about human thinking

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5
Q

What is the information processing model?

A

1:input (from the environment via the senses)
2:processing (info is encoded and processed using schema)
3:output (observable behaviour)

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6
Q

What are computer models

A

The development of computers and their programming led to a focus on the way in which sensory information is coded as it passes through the system
1. Information input by senses
2. encoded into memory
3. combined with previously stored information
-Hard disks are representative of LTM and RAM

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7
Q

What is schema?

A

Packages of ideas and information developed
through experience
-Acts as a mental framework for the interpretation of incoming information received by the cognitive system

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8
Q

Why are schemas helpful?

A

Help us to take shortcuts in our thinking

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9
Q

Are we born with schemas?

A

Yes, basic ones that develop with experience

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10
Q

What is the disadvantage of schemas?

A

They can lead to faulty conclusions and can distort interpretations of sensory information, leading to perceptual errors

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11
Q

Define inference

A

The process whereby we draw conclusions about the way mental processes operate in the brain on the basis of observed behaviour

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12
Q

Who conducted the Trigram study in 1959?

A

Peterson and Peterson

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13
Q

What was the procedure of this study?

A

-Participants were asked to remember a trigram
-They were given a delay between the recall which they were required to perform and the inference task which would reduce the chances of them using techniques to rehearse the data and remember it better
-The delay between being shown the trigram and being asked to recall it varied between participants
-The intervals were 3,6,9,12.15.18

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14
Q

What were the findings of the study?

A

-Recall success was around 50 after an interval of 3 seconds and inference task but this reduced gradually to around 10%over intervals of 6,9 and 12 seconds and gradually to around 5%after 18 seconds
-This suggests that time does result in decay in the short-term memory

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15
Q

How is cognitive neuroscience used?

A

To study processes indirectly by making inferences

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16
Q

What is cognitive neuroscience?

A

The study of the influence of brain structure on mental processes

17
Q

What did Paul Broco suggest in the 1860s?

A

Brain damage to the frontal lobe affects how speech is processed

18
Q

What is FMRI?

A

-Based on the same technology as magnetic resonance imaging (MRI)
-Uses strong radio waves
-MRI looks at oragns+tissues, FMRI looks at blood flow and activity in the brain
-Changes in blood flow help to understand how the brain functions

19
Q

What are PET scans?

A

-Positron emission tomography
-3D images
-FDG is used (a radiotracer)
-Identifies any abnormalities

20
Q

What is EEG?

A

-Recording of brain activity
-Sensors pick up electrical signals

21
Q

What do these three techniques help us to understand?

A

Relationships between complex behaviours

22
Q

Give 2 strengths of the cognitive approach

A

Highly controlled - reliable, objective can infer cognitive processes
Biological and cognitive psych can come together- rigorous method, accurate results through scans

23
Q

Give 2 limitations of the cognitive approach

A

Reductionist- reduces the brain down to the operations of a computer, tells us how processes take place but not why they happen, ignores the influence of human emotion

Animal studies are used so have to be careful when applying them to memory as they can lack validity