Descartes theory of the body/soul relationship is called interactionalism
his view that the mind + body interact within the pineal gland
Descartes claimed that a human being consists of a material body (temporary machine) and a non-physical mind/soul (permanent essence)
these different entities could interact through the pineal gland, where the soul is
Descartes held that the pineal gland formed the link between body + soul
evaluation of Descartes' view:
the function of the pineal gland is now known - part of his justification before had been that it's function was unknown
he doesn't explain how interaction takes place
Descartes'interactionalism was criticised by Gilbert Ryle, using the Ghost in the Machine critique
he accused Descartes of making a 'category mistake' - we should not expect to find an extra something in the form of a mind over + above the different parts of the body
to talk of the mind/soul is not to talk of some 'disembodied ghost'