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IB Psychology Paper 1 and Paper 2 Preparation

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Are you approaching your IB Psychology final exams? Do you need help bringing all of your notes together? Or do you need a summary of what might come up on the Paper 1 or Paper 2? This whole booklet contains study notes, possible essay questions that could come up and example SAQ's to practice with.

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IB Psychology - FULL Paper 1 Study
Guide

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Katerina Contreras
2022




Psychology
Mocks and May Finals

BIOLOGICAL

BIOLOGICAL SAQ STUDIES
1. Radke et al.

Aim:
· To investigate the relationships between perceiving a social threat,
testosterone, and the amygdala.
Hypothesis:
· That the amygdala isn’t just involved in the perception of the threat, but the
effect of motivation to deal with the threat is an important aspect to consider.

Methodology:
· Half of the participants (54 healthy females) given a small dose of testosterone
· The other half was given a placebo
· Shown pictures of angry or happy faces while participants laid down in an fMRI
scanner.
- For every picture, the participants had to avoid or approach the
face by using a joystick (would appear larger (approach) or
smaller (avoid))
Results:
· Suggest that testosterone works by increasing the activation of the amygdala
when we are motivated to retaliate to a social threat (which prepares our body
physically for that defence).
· The group with testosterone had more activation in their amygdala when they
were approaching angry faces when told to do so than when they approached
happy faces.
· There wasn’t a significant difference in the activation of the prefrontal cortex
across groups.

Applications:
· If we have high levels of testosterone, perhaps we won’t necessarily react
aggressively when we’re threatened because we’ll be able to regulate that
emotional reaction and we’ll be able to think through our decisions. However,
individuals with existing damage or low functioning of the prefrontal cortex may
not be able to do so, which could explain why studies have shown low
prefrontal cortex activity and high levels of testosterone in prison populations.




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Ethical considerations:
· Informed consent (because they were being given testosterone and asked to
be inside an fMRI machine which could cause claustrophobia)
· Debriefing (due to the administration of testosterone)
· Confidentiality (each filming of a brain scan should be confidential to the
researchers and participant)

Research method:
· True lab experiment (explain how and why researchers use this type of
research method)


2. Bechara et al.

Game:
· Four decks of cards
· Two have a high short-term reward, long-term losses
· Two have low short-term rewards, better long term gains
· 100 trials
· Participants select
· After about 20 or 30 trials most people (adults) find a pattern and play the safe
option.

Methods of the experiment:
· Compared 8 people with vmPFC lesions and 17 healthy controls
· Gave them the Iowa Gambling Task
· Participants with vmPFC more likely to take the risk; didn’t identify the pattern


3. Luby et al.
a.

Aim:
· To investigate whether income to needs ratio experienced in early childhood
impacts brain development at school age and to explore the mediators of this
effect.

Methodology:
· Longitudinal study:
- 145 children, 3-6 year old, right-handed.
- Children were assessed annually for 10 years prior to the time of an MRI
scan:
- Evaluated on psychosocial, behavioural and other developmental
dimensions.

Results:
· Children from poorer areas tend to have less volume in their hippocampus and
amygdala.




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4. MacNamara et al.
a.

Aims:
· To test the effectiveness of SSRIs.

Methods:
· NOT double-blind or placebo group (MUCH WEAKER)
· 34 male veterans of Operation Iraqi Freedom (OIF) and Operation Enduring
Freedom (OEF).
· 17 were diagnosed with PTSD and 17 without PTSD.
· All underwent an fMRI scan while they were doing an emotional regulation task
that required top-down processing and cognitive reappraisal of emotional
stimuli.
· 12 weeks of SSRI treatment (Paroxetine) for people with PTSD.
· After 12 weeks they did the same emotional appraisal task in the fMRI.
· CAPs was used to assess PTSD before and after the treatment.

Results:
· 70% of the PTSD group (12/17) showed at least a 50% reduction in their PTSD
symptoms.
· Areas of the brain associated with top-down processing and regulation of the
amygdala (PFC and SMA (Supplementary Motor Area)) also increased during
cognitive reappraisal.

Conclusions:
· SSRIs may help treat PTSD by improving function in parts of the brain that will
help with important cognitive processes, like reappraisal.


5. Raine and Baker et al.
a.

Aim:
· To investigate the extent to which anti social behaviour can be attributed to
genes (heritability of behaviour)

Type of Experiment:
· Twin Study

Participants:
· 1,210 twins in California, USA

Procedure:
· Child, teachers, caregiver filled out questionnaires to test the child's
personality, behaviour and social skills (anti-social behaviour)

Results:




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