Biological Approach Methods Brain scanning techniques (CAT, PET, fMRI) The use of brain scanning to investigate aggression One twin study – Gottesman and.

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Presentation transcript:

Biological Approach Methods Brain scanning techniques (CAT, PET, fMRI) The use of brain scanning to investigate aggression One twin study – Gottesman and Shields

Homework check Research one brain scanning technique from CAT, PET or fMRI.

Learning objectives 1) To describe and evaluate three brain scanning techniques (CAT, PET and fMRI) and be able to teach the basics of these to others.

Computed Assisted Tomography Scan (CAT Scan) Describe a CAT scan (4)

Strengths and Weakness Explain two strengths and two weaknesses (8)

Positron Emission Tomography (PET) Describe a PET scan (4)

Positron Emission Tomography (PET) Advantages (4)

Positron Emission Tomography (PET) Disadvantages (4)

Describe a fMRI scan (4) Functional Magnetic Resonance Imaging (fMRI)

Miss Shefik’s Brain!!!!

fMRI scans AdvantagesDisadvantages

Compare the three scanning techniques IssueMRI scanPET scanfMRI scan Non-invasive Can scan brain activity Needs interpretation Scientific method Validity Reliability

Links to Issues and Debates: Practical issues in the design and implementation of research – e.g. issues in scanning and measuring the complexity of the brain. Psychology as a science – e.g. synaptic transmission; brain scanning techniques. An understanding of how psychological knowledge has developed over time – e.g. development of scanning techniques up to fMRI. Issues of social control – e.g. using knowledge of brain function to control individuals.

Which scanning technique would you use and why to see if someone had a tumour? If you were investigating schizophrenia and its localisation, which brain scanning technique would you use and why? If you wanted to examine the receptors of neurotransmitters which brain scanning technique would you use and why?