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more psych A0S2
| Question | Answer |
|---|---|
| Between subjects | individuals are divided into groups and complete one experimental condition |
| Within subjects | participants are exposed to both conditions |
| Mixed method | participants perform every experimental condition |
| Random sampling + strengths and limitation | every member has equal chance to be selected for the population; free from bias and unlikely to be representative |
| Stratified sampling + strengths and limitation | ensuring all sub groups are equally represented; more representative and time consuming |
| Convenience sampling + strengths and limitation | selecting readily available members; time and cost effective and unlikely to be representative |
| Random allocation | every member has an equal chance to be selected for the control or experimental group |
| Strength of random allocation | removes bias from selecting that can hinder validity of the outcome |
| CT scan + type of neuroimaging | technique that involves taking continuous 2D images of the brain to create comprehensive 3D images; structural |
| Benefit of CT | enables the detection of haemorrhages, blood clots, cancer, and the loss of brain mass |
| Limitation of CT | limited to black and white images that arent detailed and ionising radiation of the x-ray can cause cancer |
| MRI scan + type of neuroimaging | technique that uses magnetic and radio fields to take detailed 2D and 3D images; structural |
| Benefit of MRI | less harmful because it uses magnetic fields over x-rays and produces more detailed and colourful images |
| Limitation of MRI | cannot be used on someone with internal pacemakers or screws |
| PET scan + type of neuroimaging | technique where someone is injected with radioactive glucose and active brain areas light up when consumed; functioning |
| Benefit of PET | can do activites during the scan |
| Limitation of PET | typically less resolution |
| fMRI scan + type of neuroimaging | same as MRI, but the chambers detect oxygen levels in the brain, showing activeness of the brain by showing how much oxygen is the brain; functional |
| Benefit of fMRI | doesn't require injection of radioactive substance |
| Limitation of fMRI | cannot be used on someone with internal pacemakers |
| Which neuroimaging technique is both structural and functional? | fMRI |
| CTE | progressive and fatal disease caused by repeated head injuries or a single severe traumatic injury |
| Biggest risk factor of CTE | high contact sports |
| CTE causes in term of biological functions | abnormal buildup of a protein called tau in the brain, leading to the destruction of brain cells and neurons |
| Two symptoms of CTE | mood impairments and memory loss |
| What area of the brain is impacted first and what does it cause? | pre-frontal cortex; personality changes and aggression in early stages of CTE |
Created by:
miguel(^.^)