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In psychology, trait theory is an approach to the study of human personality. Trait theorists are primarily interested in the measurement of traits, which can be defined as habitual patterns of behaviour, thought, and emotion. According to this perspective, traits are aspects of personality that are relatively stable over time, differ across individuals, are relatively consistent over situations, and influence behaviour. Traits are in contrast to states, which are more transitory dispositions.
Conscientiousness is the personality trait of being careful or diligent. Conscientiousness implies a desire to do a task well, and to take obligations to others seriously. Conscientious people tend to be efficient and organized as opposed to easy-going and disorderly. They tend to show self-discipline, act dutifully, and aim for achievement; they display planned rather than spontaneous behavior; and they are generally dependable. Conscientiousness manifests in characteristic behaviors such as being neat, systematic, careful, thorough, and deliberate.
In psychology, schizotypy is a theoretical concept that posits a continuum of personality characteristics and experiences, ranging from normal dissociative, imaginative states to extreme states of mind related to psychosis, especially schizophrenia. The continuum of personality proposed in schizotypy is in contrast to a categorical view of psychosis, wherein psychosis is considered a particular state of mind, which the person either has or does not have.
Psychoticism is one of the three traits used by the psychologist Hans Eysenck in his P–E–N model model of personality.
In psychology, the Eysenck Personality Questionnaire (EPQ) is a questionnaire to assess the personality traits of a person. It was devised by psychologists Hans Jürgen Eysenck and Sybil B. G. Eysenck.
Agreeableness is a personality trait that manifests as behavior that is perceived as kind, sympathetic, cooperative, warm, frank, and considerate. In contemporary personality psychology, agreeableness is one of the five major dimensions of personality structure, reflecting individual differences in cooperation and social harmony.
Openness to experience is one of the domains which are used to describe human personality in the Five Factor Model. Openness involves six facets, or dimensions: active imagination (fantasy), aesthetic sensitivity, attentiveness to inner feelings, preference for variety (adventurousness), intellectual curiosity, and challenging authority. A great deal of psychometric research has demonstrated that these facets or qualities are significantly correlated. Thus, openness can be viewed as a global personality trait consisting of a set of specific traits, habits, and tendencies that cluster together.
The Temperament and Character Inventory (TCI) is an inventory for personality traits devised by Cloninger et al. It is closely related to and an outgrowth of the Tridimensional Personality Questionnaire (TPQ), and it has also been related to the dimensions of personality in Zuckerman's alternative five and Eysenck's models and those of the five factor model.
Harm avoidance (HA) is a personality trait characterized by excessive worrying; pessimism; shyness; and being fearful, doubtful, and easily fatigued. In MRI studies HA was correlated with reduced grey matter volume in the orbito-frontal, occipital and parietal regions.
Claude Robert Cloninger is an American psychiatrist and geneticist noted for his research on the biological, psychological, social, and spiritual foundation of both mental health and mental illness. He previously held the Wallace Renard Professorship of Psychiatry, and served as professor of psychology and genetics, as well as director of the Sansone Family Center for Well-Being at Washington University in St. Louis. Cloninger is a member of the evolutionary, neuroscience, and statistical genetics programs of the Division of Biology and Biomedical Sciences at Washington University, and is recognized as an expert clinician in the treatment of general psychopathology, substance dependence, and personality disorders. Dr. Cloninger is currently professor emeritus.
In psychology, novelty seeking (NS) is a personality trait associated with exploratory activity in response to novel stimulation, impulsive decision making, extravagance in approach to reward cues, quick loss of temper, and avoidance of frustration. It is measured in the Tridimensional Personality Questionnaire as well as the later version Temperament and Character Inventory and is considered one of the temperament dimensions of personality. Like the other temperament dimensions, it has been found to be highly heritable. High NS has been suggested to be related to low dopaminergic activity.
Reward dependence is characterized as a tendency to respond markedly to signals of reward, particularly to verbal signals of social approval, social support, and sentiment. When reward dependence levels deviate from normal we see the rise of several personality and addictive disorders.
The traits of extraversion and introversion are a central dimension in some human personality theories. The terms introversion and extraversion were introduced into psychology by Carl Jung, although both the popular understanding and current psychological usage vary. Extraversion tends to be manifested in outgoing, talkative, energetic behavior, whereas introversion is manifested in more reflective and reserved behavior. Jung defined introversion as an "attitude-type characterised by orientation in life through subjective psychic contents", and extraversion as "an attitude-type characterised by concentration of interest on the external object".
Sensation seeking is a personality trait defined by the search for experiences and feelings, that are "varied, novel, rich and intense", and by the readiness to "take physical, social, legal, and financial risks for the sake of such experiences." Risk is not an essential part of the trait, as many activities associated with it are not risky. However, risk may be ignored, tolerated, or minimized and may even be considered to add to the excitement of the activity. The concept was developed by Marvin Zuckerman of the University of Delaware. In order to assess this trait he created a personality test called the Sensation Seeking Scale. This test assesses individual differences in terms of sensory stimulation preferences. So there are people who prefer a strong stimulation and display a behavior that manifests a greater desire for sensations and there are those who prefer a low sensory stimulation. The scale is a questionnaire designed to measure how much stimulation a person requires and the extent to which they enjoy the excitement. Zuckerman hypothesized that people who are high sensation seekers require a lot of stimulation to reach their Optimal Level of Arousal. When the stimulation or sensory input is not met, the person finds the experience unpleasant.
In psychology, persistence (PS) is a personality trait. It is measured in the Temperament and Character Inventory (TCI) and is considered one of the four temperament traits. Persistence refers to perseverance in spite of fatigue or frustration. Cloninger's research found that persistence, like the other temperament traits, is highly heritable. The subscales of PS in TCI-R consist of:
- Eagerness of effort (PS1)
- Work hardened (PS2)
- Ambitious (PS3)
- Perfectionist (PS4)
Self-transcendence is a personality trait that involves the expansion of personal boundaries, including, potentially, experiencing spiritual ideas such as considering oneself an integral part of the universe. Several psychologists, including Viktor Frankl, Abraham Maslow, Pamela G. Reed, C. Robert Cloninger, Lars Tornstam, and Scott Barry Kaufman have made contributions to the theory of self-transcendence.
Self-directedness is a personality trait of self-determination, that is, the ability to regulate and adapt behavior to the demands of a situation in order to achieve personally chosen goals and values. It is one of the "character" dimensions in Cloninger's Temperament and Character Inventory (TCI). Cloninger has described it as "willpower", defined as "a metaphorical abstract concept to describe the extent to which a person identifies the imaginal self as an integrated, purposeful whole individual, rather than a disorganized set of reactive impulses." Cloninger's research has found that low self-directedness is a major common feature of personality disorders generally. Self-directedness is conceptually related to locus of control. That is, low self-directedness is associated with external locus of control, whereas high self-directedness is associated with internal locus of control. In the five factor model of personality, self-directedness has a strong inverse association with neuroticism and a strong positive association with conscientiousness.
The alternative five model of personality is based on the claim that the structure of human personality traits is best explained by five broad factors called impulsive sensation seeking (ImpSS), neuroticism–anxiety (N-Anx), aggression–hostility (Agg-Host), sociability (Sy), and activity (Act). The model was developed by Marvin Zuckerman and colleagues as a rival to the well-known five factor model of personality traits and is based on the assumption that "basic" personality traits are those with a strong biological-evolutionary basis. One of the salient differences between these two models is that the alternative five model lacks any equivalent to the dimension called openness to experience in the five factor model.
Activity-specific approach in temperament research is the theory related to a structure of temperament, i.e. how temperament traits can be classified and organized. This approach suggests:
Structure of Temperament Questionnaire (STQ) is a test to measure 12 biologically and neurochemically based individual differences.
References
- 1 2 3 Cloninger, C.R.; Svrakic, DM; Przybeck, TR (December 1993). "A psychobiological model of temperament and character". Archives of General Psychiatry. 50 (12): 975–90. doi:10.1001/archpsyc.1993.01820240059008. PMID 8250684.
- 1 2 De Fruyt, F.; Van De Wiele, L.; Van Heeringen, C. (2000). "Cloninger's Psychobiological Model of Temperament and Character and the Five-Factor Model of Personality". Personality and Individual Differences. 29 (3): 441–452. doi:10.1016/S0191-8869(99)00204-4.
- ↑ Zuckerman, Marvin; Cloninger, C. Robert (August 1996). "Relationships between Cloninger's, Zuckerman's, and Eysenck's dimensions of personality". Personality and Individual Differences . 21 (2): 283–285. doi:10.1016/0191-8869(96)00042-6. PMC 4486314 . PMID 26146428.
- 1 2 Laidlaw, Tannis M.; Dwivedi, Prabudha; Naito, Akira; Gruzelier, John H. (2005). "Low self-directedness (TCI), mood, schizotypy and hypnotic susceptibility". Personality and Individual Differences. 39 (2): 469. doi:10.1016/j.paid.2005.01.025.
- ↑ Danelluzo, E.; Stratta, P.; Rossi, A. (Jan–Feb 2005). "The contribution of temperament and character to schizotypy multidimensionality". Comprehensive Psychiatry. 46 (1): 50–5. doi:10.1016/j.comppsych.2004.07.010. PMID 15714195.
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