Biological Approach Flashcards

(44 cards)

1
Q

Why are males more physically aggressive than females

A

To ensure that offspring is theirs and genes are passed on

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2
Q

2 strengths for CAT scans

A

Non invasive
Reliable / replicable

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3
Q

2 weaknesses of CAT scans

A

Involves radiation
Only measures structure and layout of brain

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4
Q

How do PET scans work

A

Patient is injected with radiative tracer which is absorbed into the bloodstream
Glucose is used by and positrons are emitted

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5
Q

2 strengths of PET scan

A

Replicable
Valid unbiased images

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6
Q

2 weakness of PET scans

A

more invasive
Artificial setting
or colours hard to distinguish

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7
Q

2 strengths of fMRI scans

A

Replicable
Non invasive

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8
Q

2 weaknesses of fMRI

A

artificial setting
Not suitable for all people

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9
Q

Aim of Raine Et al Classical study

A

To identify brain dysfunctions with people charged with murder who plead NGRI

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10
Q

method and sample of raine

A

41 murders 41 non murderer
39 males 2 females
Matched pair design: age sex ethnicity

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11
Q

Procedure of Raine

A

Remitted to University of California to be assessed for NGRI
pps free from medication 2 weeks prior - urine test
Matched pair
Pps underwent PET scan and continuous performance task which was Identifying targets on screen
32 minute period
PET took 10 images at 10mm intervals

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12
Q

Findings of PET in glucose metabolism

A

Murders had lower glucose metabolism in areas linked to violence

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13
Q

Areas of cortical area

A

Lateral and prefrontal areas

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14
Q

Areas of subcortical

A

Corpus colosseum
Left amygdala

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15
Q

Define evolution

A

The gradual development of organisms overtime

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16
Q

Define natural selection

A

Organisms that are adapted to their environment by passing on genes

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17
Q

Define survival of the fittest

A

Changing on characteristics genes and traits to survive

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18
Q

Define male retention

A

When males deter their mate from leaving

19
Q

Define negative inducement

A

When they shout at female partner for looking at another man

20
Q

Define partner guarding

A

Restricting partner from interacting with others

21
Q

What is the study for evolution and aggression

A

Shackleford 2005

22
Q

What did shackleford do

A

Made 461 men ans 560 women who were in a heterosexual relationship to report male retention in their relationship

23
Q

What did shackleford find

A

That there was a positive correlation with their violence scores

24
Q

what principle is ID

25
what age do you develop ID
birth-2
26
what 2 things make ID
Eros and Thanatos
27
what principle is the ego
reality principle
28
what age do you develop ego
2-3
29
what does ego do
controls and delays urges of id
30
what principle is the superego
morality principle
31
what age do you develop superego
3-6
32
explain psychoanalysis
Freud will have patients lie down and relax he would take notes on their thoughts/dreams/memories this would uncover unconscious causes for behaviour lengthy process treats anxiety and depression
33
what are hormones
biochemical messengers
34
what is the role of cortisol
protect body against stress
35
where is cortisol secreted from
adrenal gland
36
where is adrenaline secreted from
adrenal gland
37
where is melatonin secreted from
pineal gland
38
what did dabbs et al do
tested testosterone levels in male and female inmates using their salvia to see if there was a correlation between testosterone levels and violence
39
what did dabbs find
there was a positive correlation of testosterone and violent crime committed between 87 female inmates
40
who did the twin adaption studies
brendgen
41
what was the aim of brendgen twin study
to find whether social and physical aggression can be explained by genetic and/or environmental factors
42
what was the sample for brendgen
234 pairs of twins from Quebec newborn twin study (QNTS)
43
what is the procedure of brendgen twin study
tested physical and social aggression by teachers and peers
44
findings for brendgen
physical agg mostly due to genetic influence (63%) social agg mostly due to non shared environment (37%)