commissurotomy

In line with the pro-Nicene tradition, while embracing the material constitution analogy as the most accurate, they also give the analogies of three men, a person with multiple personality disorder, and commissurotomy patients who seem to exhibit two “spheres of consciousness”, praising each of these as somewhat “fruitful” and to some degree illuminating (Brower and Rea 2005b).

Trinity Tuggy, Dale 2009

As support, they appeal to commissurotomy patients who after their brain hemispheres are divided seem to act as if each half were itself a functioning mind.

Trinity Tuggy, Dale 2009

Unlike commissurotomy cases, it is not the case that a conscious experience of the second item exists within another unified consciousness.

The Unity of Consciousness Brook, Andrew 2006

In the cases he reports, commissurotomy patients are conscious of some object seen in the right side of the visual field by the left hemisphere (controlled so that the information is received by only that hemisphere) until an intention is formed to reach for it with the left hand, controlled by the right hemisphere.

The Unity of Consciousness Brook, Andrew 2006

As I note in the comments, I actually think commissurotomy cases are one more evidence that personal identity is not reducible to psychological continuity: people whose hemispheres have been split act almost exactly like you do.

Split Something-or-Other 2005

As I note in the comments, I actually think commissurotomy cases are one more evidence that personal identity is not reducible to psychological continuity: people whose hemispheres have been split act almost exactly like you do.

Archive 2005-03-01 2005

Only after the intact right hemisphere is released from its integration with the disruptive and suppressive influence of the damaged hemisphere, as effected by commissurotomy, can its own residual function become effective.

Roger W. Sperry - Nobel Lecture 1981

Progressive Matrices test by subjects with cerebral commissurotomy.

Roger W. Sperry - Nobel Lecture 1981

It has been suggested in answer (13, 14, 15) that the commissurotomy evidence may be misleading because of an atypical bilateral spread of language into the right hemisphere correlated with the long-term epilepsy and associated pathology.

Roger W. Sperry - Nobel Lecture 1981

The commissurotomy patients were also able with the right hemisphere to choose correct written or spoken words to match presented objects or pictures and to go correctly from spoken to printed words and vice versa.

Roger W. Sperry - Nobel Lecture 1981