McGraw-Hill OnlineMcGraw-Hill Higher EducationLearning Center
Student Center | Instructor Center | Information Center | Home
Chapter Objectives
Issues and Applications
Theories
Philosophers
Glossary
Feedback
Help Center


Doing Philosophy: An Introduction Through Thought Experiments, 2/e
Theodore Schick, Muhlenberg College
Lewis Vaughn

The Problem of Personal Identity

accidental property  a property a thing can lose without ceasing to exist.
animalism  The doctrine that identical persons are identical human animals.
apparent memory  A memory of an event that either didn't happen or that was not caused by the event it records.
brain theory  The doctrine that identical persons are those who are psychologically continuous with one another and whose psychology caused by and realized in the same brain.
closest continuer theory  the doctrine that identical persons are those who are the closest continuers of one another.
direct memory  A memory that a person can consciously recall.
essential property  a property a thing cannot lose without ceasing to exist.
indirect memory  A memory that an earlier version of a person can consciously recall.
memory theory  The doctrine that identical persons are those who share at least one experience memory.
nonbranching theory  the doctrine that identical persons are those who are psychologically continuous with one another and whose causal connection has not branched.
numerical identity  Two objects are numerically identical if and only if they are one and the same.
only x and y principle  The principle that says that whether one thing, x, is identical to another thing, y, can depend only on facts about x and y.
psychological connectedness  Two people are psychologically connected if they can directly (consciously) quasi-remember and quasi-desire the same things.
psychological continuity  Two people are psychologically continuous with one another if they form part of an overlapping series of persons who are psychologically connected with one another.
psychological continuity theory  The doctrine that identical persons are those who are psychologically continuous with one another.
qualitative identity  Two objects are qualitatively identical if and only if they share the same properties (qualities).
quasi-desire  A person quasi-desires something if and only if that person seems to desire it, (2) somebody actually did desire it, and (3) the person's desire is caused in the right way by the actual desire.
quasi-memory  A person quasi-remembers an experience if and only if (1) that person seems to remember having the experience, (2) somebody actually had the experience, and (3) the person's seeming to remember the experience is caused in the right.
real memory  A memory of an event that was experienced by the person remembering it and that was caused by the event it records.
revised body theory  The doctrine that identical persons are those who are psychologically continuous with one another and whose psychology caused by and realized in the same body.
soul theory  The doctrine that identical persons are those with identical souls.