Meaney et al (1988)

IB Psychology: Meaney et al (1988)

Meaney carried out a study of the role of stress hormones on memory. You can use this study for the following learning objectives:Discuss how and why particular research methods are used at the biological level of analysis.Explain the function of hormones in human behaviour.Explain how biological factors may affect one cognitive process.Discuss two effects of the environment on physiological processes.

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Comments 7

Ian Latham 30 September 2017 - 20:03

Is Meaney accepted as an example of a study in the field of neurogenesis? The argument being that the LT exposure to cortisol leads to overstimulation leading to cell death, resulting in pruning....? (In the process of reviewing old studies to the light of the new syllabus.) Thanks.

John Crane 2 October 2017 - 05:11

Ian - a good question. I think that any study of hippocampal atrophication would be an example of plasticity.

Jill Goodreau 1 April 2018 - 14:02

If students were asked to "Explain one effect of the environment on physiological processes" as an SAQ would they need to relate Meaney's results to human physiological processes? Or would explaining the hippocampal cell death caused by the high levels of glucocorticoids in rats be enough? Since question doesn't say "human" I wasn't sure how explicit one needs to be. Thanks!

John Crane 2 April 2018 - 09:13

Dear Jill, the questions does not specify that it must be human physiology. We have accepted animal research for this question in the past.

Jill Goodreau 2 April 2018 - 14:29

Thanks for the response!

Sabina Bokhari Friberg 19 April 2018 - 08:30

Hi John!
I'm a bit confused. If the aim is to investigate the effect of stress on memory, should it not be the experimental condition who doesn't receive any additional grooming (and thus experiences higher levels of stress)? I'm trying to connect this to the developmental unit and would then view the grooming as a protective factor against the effects of stress. Am I wrong?

John Crane 20 April 2018 - 08:28

Dear Sabina, there was a group that had no grooming. They were the ones that shoeed hippocampal impairment.

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