<unk>  <unk>  is a personality trait characterized by excessive worrying; pessimism; shyness; and being fearful, doubtful, and easily fatigued. In MRI studies<unk>  was correlated with reduced grey matter volume in the orbito-frontal, occipital and parietal regions.<unk>  is a temperament assessed in the Temperament and Character Inventory (TCI), its revised version (TCI-R) and the Tridimensional Personality Questionnaire (TPQ) and is positively related to the trait neuroticism and inversely to extraversion in the Revised NEO Personality Inventory and the Eysenck Personality Questionnaire. Researchers<unk> ve contended that<unk>  represents a composite personality dimension with neurotic introversion at one end of the spectrum and stable extraversion at the other end.<unk> <unk> s also been found to<unk> ve moderate inverse relationships with conscientiousness and openness to experience in the five factor model. The<unk>  of TPQ and TCI-R<unk> s four subscales: # Anticipatory worry <unk> 1) # Fear of uncertainty <unk> 2) # Shyness/Shyness with strangers <unk> 3) # Fatigability/Fatigability and asthenia (weakness) <unk> 4) It<unk> s been suggested that<unk>  is related to high serotonergic activity, and much research<unk> s gone into investigating the link between<unk>  and components of the serotonin system, e.g. genetic variation in 5-HTTLPR in the serotonin transporter gene.
Harm avoidance
Harm reduction
Rejuvenation
Pathological demand avoidance
Social distancing
Stimming
Therapeutic touch
Sensory substitution