Boundary between the ego and external reality that is different from the internal boundary between the ego and id. Also called the external capsule that is a thin layer of tissue near the midline of the human brain. Also called capsula external.

EXTERNAL BOUNDARY: "The external boundary looks at boundaries in our brain."
Cite this page: N., Pam M.S., "EXTERNAL BOUNDARY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/external-boundary/ (accessed August 2, 2021).