Positive affectivity

Positive affectivity (PA) is a human characteristic that describes how much people experience positive affects (sensations, emotions, sentiments...); and as a consequence how they interact with others and with their surroundings. Positive affectivity (PA) is a human characteristic that describes how much people experience positive affects (sensations, emotions, sentiments...); and as a consequence how they interact with others and with their surroundings. People with high positive affectivity are typically enthusiastic, energetic, confident, active, and alert. Research has linked positive affectivity with an increase in longevity, better sleep, and a decrease in stress hormones. People with a high positive affectivity have healthier coping styles, more positive self-qualities, and are more goal oriented. Positive affectivity also promotes an open-minded attitude, sociability, and helpfulness. Those having low levels of positive affectivity (and high levels of negative affectivity) are characterized by sadness, lethargy, distress, and un-pleasurable engagement (see negative affectivity). Low levels of positive affect are correlated with social anxiety and depression, due to decreased levels of dopamine. Studies are finding there is a relationship between dopamine release and positive affect in cognitive abilities. For instance, when dopamine levels are low, positive affect can stimulate the release of more dopamine, temporarily increasing cognitive, motor, and emotional processing. Stimulating dopamine release influences several cognitive functions. First, an increase in dopamine in the nigrostriatal system can temporarily relieve motor or cognitive dysfunction, due to Parkinson’s. An increase in dopamine release also influences the mesocorticolimbic system, via VTA cells, increasing mood and open mindedness in older adults. Positive affect also stimulates dopamine production in the prefrontal cortex and the anterior cingulate facilities, which help with processing working memory and executive attention. Lastly, PA indirectly improves memory consolidation in the hippocampus, by increasing acetylcholine release from an increase in dopamine. Overall, positive affect results in a more positive outlook, increases problem solving skills, increases social skills, increases activity and projects, and can play a role in motor function. Positive affectivity (PA) and negative affectivity (NA) are nearly independent of each other; it is possible for a person to be high in both PA and NA, high in one and low in the other, or low in both. Affectivity has been found to be moderately stable over time and across situations (such as working versus relaxing). Positive affectivity may influence an individual's choices in general, particularly their responses to questionnaires. Happiness, a feeling of well-being, and high levels of self-esteem are often associated with high levels of positive affectivity, but they are each influenced by negative affectivity as well. Trait PA roughly corresponds to the dominant personality factors of extraversion; however, this construct is also influenced by interpersonal components. Because there is not a hard-and-fast rule for defining certain levels of positive affectivity, different self-reported assessments use different scales of measure. Several prominent tests are listed below; in each of these, the respondent determines the degree to which a given adjective or phrase accurately characterizes him or her.