Podcast
Questions and Answers
What is neural pruning?
What is neural pruning?
Happens when we lose synaptic connections in a neural network because we do not use them.
What is a synapse?
What is a synapse?
The small space between neurons where neurotransmitters are fired from one neuron to the other.
Can stress cause acceleration in neural pruning during adolescence?
Can stress cause acceleration in neural pruning during adolescence?
True (A)
Who wrote the case study 'Poverty and Brain Development'?
Who wrote the case study 'Poverty and Brain Development'?
What was the aim of the study?
What was the aim of the study?
Why were MRIs used in the study?
Why were MRIs used in the study?
What were the results of the study?
What were the results of the study?
What other result did they find?
What other result did they find?
What are three factors that can negatively affect the development of neural networks in the hippocampus?
What are three factors that can negatively affect the development of neural networks in the hippocampus?
What did the overall study show? (conclusion)
What did the overall study show? (conclusion)
Flashcards
Neural pruning
Neural pruning
Loss of unused synaptic connections in a neural network.
Synapse
Synapse
The gap between neurons where neurotransmitters are exchanged.
Stress & Adolescent Pruning
Stress & Adolescent Pruning
Stressful events can accelerate neural pruning in adolescents.
Luby et al. 2013
Luby et al. 2013
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Poverty and Brain Dev. - Aim
Poverty and Brain Dev. - Aim
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MRI in the study
MRI in the study
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Poverty & Hippocampal Vol.
Poverty & Hippocampal Vol.
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Mediating Variables
Mediating Variables
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Negative Factors on Neural Networks
Negative Factors on Neural Networks
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Study Conclusion
Study Conclusion
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Study Notes
Neural Pruning
- Neural pruning involves the loss of synaptic connections in a neural network due to lack of use, also known as synaptic pruning.
Synapse
- A synapse is the minute gap between neurons where neurotransmitters are transmitted from one neuron to another.
Stress and Neural Pruning
- Stress is linked to an acceleration of neural pruning specifically during adolescence.
Case Study Reference
- The case study "Poverty and Brain Development" was conducted by Luby et al. in 2013.
Study Aim
- The aim was to investigate whether poverty correlates with brain development while examining mediating variables such as stress and parenting.
MRI Usage
- MRIs were utilized to assess correlations between poverty, stressful occurrences, parenting styles, and hippocampal volume in 145 children over a decade.
Study Results
- The study revealed a negative correlation between poverty and hippocampal volume.
Additional Findings
- Parenting styles and stressful life events served as mediating factors in the relationship between poverty and hippocampal volume.
Adverse Factors for Neural Network Development
- Three critical factors that can hinder the development of neural networks in the hippocampus include poverty, parenting styles, and stressful life events.
Conclusion of the Study
- The overall findings suggest that stressful events may speed up the neural pruning process.
Studying That Suits You
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Description
Test your knowledge on neural pruning and related psychological concepts with these flashcards focused on IB Psychology. Each card covers essential terms and definitions that are crucial for understanding how synaptic connections are formed and lost. Perfect for students preparing for their assessments!
