Individual differences in sensitivity to the early environment as a function of amygdala and hippocampus volumes: An exploratory analysis in 12-year-old boys
| Autor: | Essi Viding, Michael Pluess, Eamon McCrory, Alice Jones Bartoli, Stephane A. De Brito |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Adolescent Left amygdala Exploratory research Individuality Hippocampus Amygdala Developmental psychology 03 medical and health sciences 0302 clinical medicine Developmental and Educational Psychology medicine Humans 0501 psychology and cognitive sciences Child 05 social sciences Brain Exploratory analysis Magnetic Resonance Imaging Psychiatry and Mental health Brain region medicine.anatomical_structure Brain size Psychology 030217 neurology & neurosurgery 050104 developmental & child psychology |
| Zdroj: | Development and psychopathology. 34(3) |
| ISSN: | 1469-2198 0954-5794 |
| Popis: | Children differ in their response to environmental exposures, with some being more sensitive to contextual factors than others. According to theory, such variability is the result of individual differences in neurobiological sensitivity to environmental features, with some individuals generally more affected by both negative and/or positive experiences. In this exploratory study we tested whether left and right amygdala and hippocampus volumes (corrected for total brain size) account for individual differences in response to environmental influences in a sample of 62 boys. Cumulative general environmental quality, ranging from low to high, was measured across the first 9 years and child behavior was reported by teachers when boys were 12–13 years old. According to analyses, only the left amygdala volume – not any of the other brain volumes – emerged as an important brain region for sensitivity to positive environmental aspects. Boys with a larger left amygdala benefited significantly more from higher environmental quality than boys with a smaller left amygdala whilst not being more vulnerable to lower quality. Besides providing preliminary evidence for differences in environmental sensitivity due to brain structure, the results also point to the left amygdala as having a specific role regarding the response to environmental influences. |
| Databáze: | OpenAIRE |
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