-kshən noun
( -s )
Etymology: Latin introspect us + English -ion
: the examination of one's own thought and feeling : a looking into oneself : self-examination ; also : such examination including one's sensory and perceptual experience especially undertaken under controlled conditions of experiment — opposed to extrospection
• in·tro·spec·tion·al -shən ə l, -shnəl adjective