patients suffering from extreme epilepsy under went a surgery called commissurotomy which is the severing of the corpus callosum. this was to try and reduce their fits.
I want to show the independent streams of conscious awareness possessed by each hemisphere and to show how each hemisphere has its own memories.
The tachistoscope has a focal point in the middle and two areas where stimuli was presented. The participants using the tachistoscope would have one eye covered and were instructed to stare at the focal point.
the tachistoscope was in between the participants and the objects, the participants could not see the objects. Again this was a control measure to ensure only tactile stimuli was introduced to the participants.
People with split brains have two separate visual inner worlds, each with its own train of visual images. Split-brain patients have a lack of cross-integration where the second hemisphere does not know what the first hemisphere has been doing. Split-brain patients seem to have two independent streams of consciousness, each with its own memories, perceptions and impulses ie two minds in one body