transmissionist

from The Century Dictionary.

• noun One who accepts the doctrine or opinion that the effects of habits, practice, use and disuse, and the direct action of the conditions of life, are transmitted to descendants; a Lamarekian.
• Pertaining to or characterizing the doctrine of the transmissionists.

from the GNU version of the Collaborative International Dictionary of English.

• noun An adherent of a theory, the transmission theory, that the brain serves to “transmit,” rather than to originate, conclusions, and hence that consciousness may exist independently of the brain.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A person who believes that the brain only transmits consciousness rather than originating it