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Unit 1 AOS 2
Approaches to Understanding the Brain
| Question | Answer |
|---|---|
| What is brain ablation? | The surgical removal, destruction, or cutting of a region of brain tissue. |
| What are brain lesioning studies? | The practice of studying the effects of induced and/or existing damage to an area of the brain. |
| Why were brain lesioning studies important? | The experiments provided evidence that different parts of the brain were responsible for different functions. |
| What is a split brain experiment? | An experiment conducted on patients who had a severed corpus callosum, and therefore their left and right cerebral hemispheres had been separated. |
| Why are split brain experiments important? | The experiments provided evidence of hemispheric specialisation, |
| What is the corpus callosum? | Bundle of nerve fibres that connects the left and right brain hemispheres. |
| What is hemispheric specialisation? | The difference in functioning between the left and right hemispheres of the brain when performing a specific behaviour or task |
| What is contralateral organisation? | Referring to the opposite side of the body. Not only is visual information processed contralaterally, motor movements are as well. |
| What is the left hemisphere responsible for? | Language, logic and math, detail oriented, voluntary movement of the right side of the body. |
| What is the right hemisphere responsible for? | Visual spatial skills, creativity and emotion, global processing, voluntary movement of the left side of the body. |
| What are neuroimaging techniques? | A range of techniques used to capture images of the brain’s structure, function, and activities |
| What is the difference between structural and functional techniques? | Structural techniques provide information on what the brain looks like. Functional techniques provide information on brain activity. |
| What is Computerised tomography (CT) | A neuroimaging technique that involves taking continuous two dimensional x-ray images of a person’s brain or body in order to provide both two- and three-dimensional images. |
| What is Magnetic resonance imaging (MRI) | A neuroimaging technique that uses magnetic and radio fields to take two-and three-dimensional images of the brain. |
| What is Positron emission tomography (PET) | A neuroimaging technique that uses a scanning device to take coloured images of the brain, showing its functional activity by tracing the levels of a radioactive substance in the brain. |
| What is Functional magnetic resonance imaging (fMRI) | A neuroimaging technique that uses magnetic and radio fields to take two and three-dimensional images of the brain and record its activity levels. |
Created by:
NikkiFuller
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