True or False?
The aim of Rosenzweig et al. (1972) is to investigate neuroplasticity in horses’ brains.
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True or False?
The aim of Rosenzweig et al. (1972) is to investigate neuroplasticity in horses’ brains.
False.
The aim of Rosenzweig et al. (1972) is to investigate neuroplasticity in rats’ brains.
What are the three different environments the rats are randomly assigned to in Rosenzweig et al. (1972)?
The three different environments the rats are randomly assigned to in Rosenzweig et al. (1972) are:
standard laboratory cage
impoverished environment
enriched environment
What is the procedure of Rosenzweig et al. (1972)?
The procedure of Rosenzweig et al. (1972) is:
The rats live in one of the three different environments for periods of 4-10 weeks
After this phase, they are humanely sacrificed
Brain autopsies investigate the differences in rats' brains across the conditions
What is the cerebral cortex in the brain responsible for?
The cerebral cortex is the part of the brain that responds to experience and is responsible for movement, memory, learning, and all sensory input.
True or False?
Rosenzweig et al. (1972) finds the cerebral cortex of the rats who lived in the enriched environment were significantly heavier and thicker than the rats who had lived in the impoverished environment.
True.
Rosenzweig et al. (1972) finds the cerebral cortex of the rats who lived in the enriched environment were significantly heavier and thicker than the rats who had lived in the impoverished environment.
Why is it a strength of Rosenzweig et al. (1972) that the findings have potential application to therapeutic settings e.g. with dementia patients?
It is a strength of Rosenzweig et al. (1972)
that the findings have potential application to therapeutic settings. E.g. with dementia patients, providing stimulation may help to offset or prevent further loss of brain function.
True or False?
Strengths of Rosenzweig et al. (1972) include difficulty in generalising the findings to humans due to rats' simplistic brains compared to humans, and ethical issues regarding the rats' treatment.
False.
Limitations of the Rosenzweig et al. (1972) study include the difficulty in generalising the findings to humans due to rats' simplistic brains compared to humans, and ethical issues regarding the rats' treatment.
Why is it a strength of Rosenzweig et al. (1972) that a standardised procedure is used?
It is a strength of Rosenzweig et al. (1972) that a standardised procedure is used because it increases the reliability of the findings.
Who investigates whether rats’ performance in a T‐maze is associates with increased acetylcholine (ACh) in the hippocampus?
Fadda et al. (1996) investigates whether rats’ performance in a T‐maze is associates with increased acetylcholine (ACh) in the hippocampus.
What is acetylcholine (ACh)?
Acetylcholine (ACh) is a neurotransmitter associated with memory and learning.
True or False?
The procedure of Fadda et al. (1996) includes depriving rats of food, training them to use a T-maze, and undergoing different food trials whilst their brains are measured for acetylcholine.
True.
The procedure of Fadda et al. (1996) includes depriving rats of food, training them to use a T-maze, and undergoing different food trials whilst their brains are measured for acetylcholine.
True or False?
Fadda et al. (1996) finds that acetylcholine (ACh) increased in the hippocampus of control group rats before the task.
False.
Fadda et al. (1996) finds that acetylcholine (ACh) increased in the hippocampus of trained rats before the task, but not in the control rats.
What do the findings of Fadda et al. (1996) suggest?
The findings of Fadda et al. (1996) suggest that acetylcholine (ACh) may play a key role in rats’ learning and memory.
Why is it a strength of Fadda et al.(1996) that control group rats were handled in the same way as trained rats prior to the experiment?
It is a strength of Fadda et al. (1996) that control group rats were handled in the same way as trained rats prior to the experiment, as this should eliminate any bias which increases the internal validity of the study
Why could Fadda et al. (1996) be considered as lacking in ecological validity?
Fadda et al. (1996) could be considered as lacking in ecological validity as lab rats living in captivity does not represent how rats use memory or learning in the wild.