Sapolsky Et Al - Animal Studies

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Alternative Study:

Here’s a table summarizing the key points of each study:

Study	Aim	Method	Results	Evaluation
Shively & Day (2015)	Study the effects of social hierarchy on cardiovascular health	Longitudinal case study on female macaque monkeys	Lower-ranking monkeys had twice the level of atherosclerosis, a cause of heart attacks and strokes.	High ecological validity. Ethical, as it was non-invasive and naturalistic.
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Sapolsky et al. (1990s) – Study Summary

Aim:

To investigate how chronic stress and elevated levels of cortisol affect the hippocampus and memory in baboons.

Method:

Sapolsky conducted longitudinal field studies on wild baboons in Africa, observing their natural social hierarchies and stress levels. He measured cortisol levels through blood samples and observed behavioral patterns, especially focusing on dominance, subordination, and social stress. In some cases, brain autopsies were performed post-mortem to assess hippocampal volume and neuron damage.

Findings:

Subordinate baboons had chronically high cortisol levels due to social stress from harassment and lack of control.
These baboons showed damage to the hippocampus, a brain region involved in learning and memory.
Chronic exposure to cortisol correlated with memory impairment and neuron loss in the hippocampus.

Conclusion:

Long-term exposure to stress hormones like cortisol can lead to physical brain damage and cognitive decline, supporting the idea that chronic stress impairs memory by affecting the hippocampus.

Use in ERQ:

You can use this study to support arguments about:

The biological effects of chronic stress on the brain.
How animal research helps us understand human behavior (with ethical considerations).
The role of cortisol in impairing memory through its impact on the hippocampus.

Would you like help integrating this into a model paragraph for your ERQ?