AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

BIOLOGICAL PSYCHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What did Maguire et al.’s results show?
A
VBM analysis showed that in the taxi drivers there was an increase in grey matter in only two areas of the brain:the left and right hippocampi.
B
There was an decrease in grey matter bilaterally of the posterior hippocampi, but an increase in grey matter bilaterally in the anterior hippocampi.
C
There was neither an increase or decrease in grey matter in the hippocampus
D
There was an increase in grey matter bilaterally of the posterior hippocampi, but a decrease in grey matter bilaterally in the anterior hippocampi.
Explanation: 

Detailed explanation-1: -Conclusion: The results provide evidence for structural differences between the hippocampi of London taxi drivers and control participants, therefore suggesting that extensive practice with spatial navigation affects the hippocampus.

Detailed explanation-2: -Maguire et al’s study into taxi drivers serves as an example of neuroplasticity as it demonstrates how due to the environmental demands placed on the taxi drivers, neuroplasticity took place in the form of an increased grey matter, which facilitates spatial memory.

Detailed explanation-3: -6. What conclusions did Maguire make about the role of the environment on the brain? Both the memorization of the routes and the subsequent daily driving around the city results in changes in the posterior hippocampus.

Detailed explanation-4: -Maguire et al. set out to discover whether morphological (changes in form and shape) changes could be detected in the healthy human brain associated with extensive experience of spatial navigation. Their prediction was that the hippocampus would be the most likely brain region to show changes.

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