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 5

Ian Latham 7 March 2017 - 19:55

Just seen Sapolsky @ 2'23 explaining that the artificial grooming had less effect than the handled rats' prolonged absence from the mother rat changing the mother rats maternal behaviour. [Youtube "Robert Sapolsky - Behavior and epigenetics"]. This raised 2 questions:-
1. Do we need students to know this about the Meaney study? (I guess not.)
2. Do we need to know much more about epigenetics for the new syllabus? (As listening to Sapolsky I realise that I'm still unsure about this area!)

Megan Fallon 17 March 2017 - 02:54

interesting comments Ian i'm not sure of the answers but will be following

John Crane 17 March 2017 - 06:58

Dear Ian

Several students comment about this when they write about it on exams. Especially when they are writing about stress or development on Paper 2. And yes, we will need to know about epigenetics in the new curriculum. But I think that the level that we need to know is just a basic understanding of the gene-environment interaction.

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.

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