Exam Preparation 2- SELF.

Biological influences. 1. Checklist.

• methods for investigating brain function • external recordings - electroencephalography (EEG) • scanning techniques

O still pictures - computed axial tomography (CAT) scan, magnetic resonance imaging (MRI)

o dynamic pictures - functional magnetic resonance imaging (FMRI), position emission tomography (PET) scan

• case study - Phineas Gage (see previous sheet)

• factors that affect behaviour, emotion and thought • physical activity • psychological and physiological responses to recreational drugs - cannabis, alcohol and

amphetamine

2. Recall questions. Complete the following table of NEUROTRANSMITTERS: Neurotransmitter Effect on behaviour/emotion/thought.

Involved with pleasure, reward, arousal, desire and addiction.

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Com lete the followino table of HORMONES: Hormone Effect on behaviour/emotion/thought. Adrenaline 6_ \c-\\ç ci\f- pto)v\\-- st---erlpoy-Ns-e

ncreased mem y-fo ew,stf-riiil

Testosterone ni\Ok

The following things below are a list of effects of psychological drugs.

Highlight in GREEN: physiological effects Highlight in YELLOW: psychological effects

Slurred speech slower reaction time large mood swings Increased relaxation

Increased happiness sensory distortion more alert/awake increased concentration

poor memory teeth grinding decreased concentration increased panic/anxiety

Put the above effects into the categories of recreational drugs they best match in the table below.

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Alcohol Cannabis Amphetamine

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a) Complete this tree diagram of methods for investigating brain function.

b) Complete the following table.

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Name of method, and description of how it works.

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3. Application questions.

Compare and contrast a CAT scan to PET scan. (4 marks)

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CA-12-G\-/ cy\ac6K__ ?-vo ot,u_c-(2 ir\r\cAn C\Pc-r f\rosr--) Outline why using an fMRI would be better than using an MRI when looking at brain activation.

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Jane has recently had a car accident and needed a brain scan. The following image has been collected as her results.

Name the method used to collect her results, and explain how this type of scan works. (3 marks)

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Drug category Physiological effects Example of the drug

Depressants

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Pauline was almost hit by a car when she ran across the road. (3 marks)

i. The survival response which prepares Pauline's body to deal with the immediate

threat is called the c CN \i',---

ii. This causes the release of the hormone called 04-ctii ein

( \ (VA Dopamine reuptake inhibitors and serotonin reuptake inhibitors are found in antidepressants. Reuptake is the process in Which neurotransmitters are naturally reabsorbed back into nerve cells in the brain after they are released to send messages between nerve cells. A reuptake inhibitor prevents this from happening. Instead of getting reabsorbed, the neurotransmitter stays in the gap between the nerves, called the synapse. Explain why these neurotransmitters specifically have been chosen. (4 marks)

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Explain how exercise can affect your thought, emotion and behaviour. (6 rrtad,cs)

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