BLOA Flashcards
What are four advantages and three disadvantages of an MRI scan?
+ excellent resolution
+ practical
+ safe
+ fast
- expensive
- obese individuals may not fit in
- patients may feel claustrophobic
Aim of Martinez and Kesner’s study
To investigate the role of acetylcholine on memory formation
Who’s study aimed to investigate how levels of cortisol interfere with memory?
Newcomer et al
Aim of Maguire’s study
To investigate whether the hippocampi plays a role in human spatial memory
Aim of Rosenzweig and Bennet’s study
To investigate whether environmental factors (enriched/impoverished) affect development of neurons in the cerbral cortex?
Milner on HM showed what when considering physiology and cognition?
HM used MRI to show that physiological damage to the hippocampus affects memory
Who’s study had the aim of investigating the relationship between testosterone, sex and aggression?
Dabbs and Morris
2 principles of the BLOA
Animal research can inform our understanding of human behaviour
Patterns of behaviour can be inherited and therefore are genetically based
Results of Rosenzweig and Bennet’s study…
In enriched rats
- the cortex was thicker and heavier
- more activity in neurons linked to acetylcholine (important neurotransmitter for learning and memory)
Results of Martinez and Kesner’s study…
Rats with scopolamine (which reduces acetylcholine) took longest to complete maze and rats with physostigmine took shortest with control group in between
What type of test did the participants participate in in Newcomer’s study?
Verbal declarative memory test
What were the results of Maguire’s study?
Taxi drivers had more grey matter in the left and right hippocampus compared to control group - the form of hippocampus changed with more demand on spatial memory
What were the results of Dabbs and Morris’ study?
Men with high levels of testosterone were more likely to have been involved in crime, drug use, alcohol abuse, childhood crime, to have gone AWOL and to have had many sexual partners
Results of Scare and Weinberg’s study…
No significant difference
Results of Wedekind’s study…
Women preferred odors of men with immune systems dissimilar to their own
