Brain lateralisation and split-brain research
- Created by: __Jess
- Created on: 04-12-22 10:06
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- Brain lateralisation and split brain research
- Brain lateralisation
- The two hemispheres are functionally different
- Evaluation
- Strengths
- Evidence from brain scans
- Weaknesses
- The idea of dominant hemispheres has been opposed
- Strengths
- Split brain research
- Studies how the hemispheres function when they cannot communicate, usually by severing the corpus callosum
- Sperry
- Procedure
- An image was projected to the patients RVF and a same or different image was shown to their LVF
- Sample
- 11 split-brain patients
- Findings
- The patients could describe objects shown to their RVF, but not their LVF
- Patients could select a matching object out of sight using their left hand
- Conclusions
- Certain functions are lateralised
- LH is verbal and RH is silent but emotional
- Procedure
- Evaluation
- Strengths
- Research support
- Gazzaniga - split brain patients perform better than controls at some tasks
- Research support
- Weaknesses
- Causal relationships are hard to establish
- Strengths
- Brain lateralisation
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