strengths of methodology

• P- the experiments involving split brain patients made use of highly specialised and standardised procedures
• E- Sperry's method of presenting visual information to one hemispheric field at a time was quite ingenious
• E- typically participants would be asked to stare at a given point, the 'fixation point', whilst one eye was blindfolded. The image projected would be flashed for one-tenth of a second , meaning the split-brain patient would not have time to move their eye across both sides of the visual field, and subsequently, both sides of the brain
• L- this allowed Sperry to vary aspects of the basic procedure and ensured that only one hemisphere was receiving information at a time. Thus he developed a very useful and controlled procedure