Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
Wikipedia
One's self-concept (also called self-construction, self-identity, self-perspective or self-structure) is a collection of beliefs about oneself that includes elements such as academic performance, gender roles, sexuality, and racial identity. Generally, self-concept embodies the answer to "Who am I?".
Self-concept is distinguishable from self-awareness, which refers to the extent to which self-knowledge is defined, consistent, and currently applicable to one's attitudes and dispositions. Self-concept also differs from self-esteem: self-concept is a cognitive or descriptive component of one's self (e.g. "I am a fast runner"), while self-esteem is evaluative and opinionated (e.g. "I feel good about being a fast runner").
Self-concept is made up of one's self-schemas, and interacts with self-esteem, self-knowledge, and the social self to form the self as whole. It includes the past, present, and future selves, where future selves (or possible selves) represent individuals' ideas of what they might become, what they would like to become, or what they are afraid of becoming. Possible selves may function as incentives for certain behavior.
The perception people have about their past or future selves is related to the perception of their current selves. The temporal self-appraisal theory argues that people have a tendency to maintain a positive self-evaluation by distancing themselves from their negative self and paying more attention to their positive one. In addition, people have a tendency to perceive the past self less favorably (e.g. "I'm better than I used to be") and the future self more positively (e.g. "I will be better than I am now").
Usage examples of "self-concept".
To help you get a clearer view of your self-concept and inner critic, the roles you play and want others to play with you, your natural and adaptive child, and, thus, your life position and life script.
The Multidimensional Assessment of Intimacy: Factor Analysis of the Personal Space Grid Index (PSGI) and Self-Report Measures of Locus of Control, Trait Anxiety, Personal Attractiveness, Self-Concept and Extroversion.
It was not the visual sense that embarrassed him: she knew his body as he knew hers, for that was a part of self-concept.