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The gene for somatostatin receptor 2, SSTR2 for short, is responsible for making a receptor for the signalling peptide, somatostatin (SST). Production occurs in the central nervous system, especially the hypothalamus, as well as the digestive system, and pancreas. [16] SSTR2 is a receptor for somatostatin-14 and -28 respectively.
Somatostatin, also known as growth hormone-inhibiting hormone (GHIH) or by several other names, is a peptide hormone that regulates the endocrine system and affects neurotransmission and cell proliferation via interaction with G protein-coupled somatostatin receptors and inhibition of the release of numerous secondary hormones.
Socioemotional selectivity theory (SST; developed by Stanford psychologist Laura L. Carstensen) is a life-span theory of motivation.The theory maintains that as time horizons shrink, as they typically do with age, people become increasingly selective, investing greater resources in emotionally meaningful goals and activities.
There is also evidence that genetic factors contribute to the variability in cortisol response as well. [1] [2] The cortisol response to psychosocial stress is moderate to high. [11] For example, carriers of the Bcll polymorphism have reduced salivary cortisol response to the TSST, while carriers of the N363S polymorphism have enhanced response ...
For humans, the Big Five personality traits, also known as the five-factor model (FFM) or the OCEAN model, is the prevailing model for personality traits. When factor analysis (a statistical technique) is applied to personality survey data, some words or questionnaire items used to describe aspects of personality are often applied to the same person.
Somatostatin receptor type 5 is a protein that in humans is encoded by the SSTR5 gene. [5] Somatostatin acts at many sites to inhibit the release of many hormones and other secretory proteins. The biological effects of somatostatin are probably mediated by a family of G protein-coupled receptors that are expressed in a tissue-specific manner.
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However, this definition and theory of biological basis is not universally accepted. There are many conflicting theories of personality in the fields of psychology, psychiatry, philosophy, and neuroscience. A few examples of this are the nature vs. nurture debate and how the idea of a 'soul' fits into biological theories of personality. [1]