OCR A-Level Psychology H567
Research Methods and Techniques
Planning and Conducting Research
Data Recording, Analysis and Presentation
Report Writing and Scientific Communication
Practical Activities and the Nature of Science
Mathematical Requirements for Research Methods
Studying and Evaluating the Core Studies: The Common Framework
Core Studies: Social Area
Core Studies: Cognitive Area
Core Studies: Developmental Area
Core Studies: Biological Area
Core Studies: Individual Differences Area
Areas and Perspectives in Psychology
Debates in Psychology
Practical Applications of Psychology
Issues in Mental Health
Child PsychologyApplied option
Criminal PsychologyApplied option
Environmental PsychologyApplied option
Sport and Exercise PsychologyApplied option
Methodological Issues and Debates Running Through Applied Psychology
Core Studies: Biological Area
Sperry (1968) split-brain study: results, conclusions and evaluation
- 3 things to know
- Component 02
Overview
Recall questions on Sperry's findings from drawing, emotional reactions, right-hemisphere language and left-hand tasks, his conclusions about consciousness and hemisphere function, and the evaluation of procedure, generalisation, sample, ecological validity, comparisons, reductionism and practical value.
What you need to know
Answer each one before you reveal it.
How is the labour divided between the two hemispheres?
Give two strengths of the procedure.
Questions from this subtopic
Each one with the model answer underneath.
- 1
Two different figures were flashed either side of the fixation point and the patient drew with the left hand. What was drawn and what was named?
Model answer
The left hand drew the figure shown in the left visual field, while the patient spoke the name of the figure shown in the right visual field.
- 2
What did the reaction to a pin-up picture flashed to the left visual field demonstrate?
Model answer
The patient giggled or blushed but could not explain why, showing the right hemisphere can produce an emotional response that the left hemisphere cannot account for.
- 3
What evidence showed the right hemisphere had some language ability?
Model answer
It could understand simple written or spoken nouns, so the left hand could find a named object by touch, and it could spell short words using plastic letters.
- 4
On which kind of task was the left hand superior?
Model answer
On spatial and constructional tasks such as arranging blocks to copy a design or drawing a three-dimensional cube.
- 5
What did Sperry conclude about consciousness in these patients?
Model answer
Each hemisphere has its own separate stream of consciousness, with its own perceptions, memories and impulses that the other hemisphere cannot reach.
- 6
What does the study show the corpus callosum does in an intact brain?
Model answer
It carries information between the hemispheres so that they work together and produce a single unified conscious experience.
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