Novelty seeking

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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. [1] That is, novelty seeking (or sensation seeking) refers to the tendency to pursue new experiences with intense emotional sensations. It is a multifaceted behavioral construct that includes thrill seeking, novelty preference, risk taking, harm avoidance, and reward dependence.

Contents

The novelty-seeking trait is considered a heritable tendency of individuals to take risks for the purpose of achieving stimulation and seeking new environments and situations that make their experiences more intense. The trait has been associated with the level of motive and excitement in response to novelty. Persons with high levels of novelty seeking have been described as more impulsive and disorderly than low novelty seekers and have a higher propensity to get involved in risky activities, such as starting to misuse drugs, engaging in risky sexual activities, and suffering accidental injuries. [2]

It is measured in the Tridimensional Personality Questionnaire and the Temperament and Character Inventory, a later version, and is considered one of the temperament dimensions of personality. Like the other temperament dimensions, it has been found to be highly heritable. The related variety seeking, or variety-seeking buying behavior, describes consumers' desire to search for alternative products even they are satisfied with a current product. For example, someone may drink tea with lunch one day but choose orange juice the next day specifically to get something different. [3] High NS has been suggested to be related to low dopaminergic activity. [4]

In the revised version of the Temperament and Character Inventory (TCI-R) novelty seeking consists of the following four subscales:

  1. Exploratory excitability (NS1)
  2. Impulsiveness (NS2)
  3. Extravagance (NS3) [5]
  4. Disorderliness (NS4)

Relationship to other personality traits

A research study [6] found that novelty seeking had inverse relationships with other dimensions of the Temperament and Character Inventory, particularly harm avoidance and to a more moderate extent self-directedness and self-transcendence. Novelty seeking is positively associated with the five factor model trait of extraversion and to a lesser extent openness to experience and is inversely associated with conscientiousness. Novelty seeking is positively related to impulsive sensation seeking from Marvin Zuckerman's alternative five model of personality and with psychoticism in Hans J. Eysenck's model. [6]

When novelty seeking is defined as a decision process (i.e. in terms of the tradeoff between foregoing a familiar choice option in favor of deciding to explore a novel choice option), dopamine is directly shown to increase novelty-seeking behavior. [7] Specifically, blockade of the dopamine transporter, causing a rise in extracellular dopamine levels, increases the propensity of monkeys to select novel over familiar choice options.

Causes

Genetics

Although the exact causes for novelty-seeking behaviors is unknown, there may be a link to genetics. Studies have found an area on the Dopamine receptor D4 gene on chromosome 11 that is characterized by several repeats in a particular base sequence. Multiple studies have identified a link to genetics, particularly that was one conducted by Dr. Benjamin and colleagues in which individuals who had longer alleles of this gene had higher novelty-seeking scores than individuals with the shorter allele. [8] In another study relating to the gene and financial risk, Dr. Dreber and colleagues found a correlation between increased risk-taking and the DRD4 gene in young males. [9]

Although studies support the link between novelty seeking and dopaminergic activity via DRD4, other studies do not exhibit a strong correlation. The importance of DRD4 in novelty seeking has yet to be confirmed conclusively.

Dopamine

In addition to potential heredity, novelty-seeking behaviors are seen with the modulation of dopamine. The overall effect of dopamine when exposed to a novel stimulus is a mass release of the neurotransmitter in reward systems of the brain including the mesolimbic pathway. [10]

The mesolimbic pathway is active in every type of addiction and is involved with reinforcement. Because of the activation in the brain, novelty seeking has been linked to personality disorders as well as substance abuse and other addictive behaviors. DRD4 receptors are highly expressed in areas of the limbic system, which is associated with emotion and cognition. Single-nucleotide polymorphisms such as rs4680 have also been examined within this realm of study.

Age

It is important to note the individual's age with novelty seeking. The behavior will decrease with time, especially as the brains of adolescents and young adults finalize their development. Possible factors of variation include gender, ethnicity, temperament, and environment.[ citation needed ]

See also

Related Research Articles

In psychology, temperament broadly refers to consistent individual differences in behavior that are biologically based and are relatively independent of learning, system of values and attitudes.

<span class="mw-page-title-main">Dopamine receptor</span> Class of G protein-coupled receptors

Dopamine receptors are a class of G protein-coupled receptors that are prominent in the vertebrate central nervous system (CNS). Dopamine receptors activate different effectors through not only G-protein coupling, but also signaling through different protein interactions. The neurotransmitter dopamine is the primary endogenous ligand for dopamine receptors.

Dopamine receptor D<sub>4</sub> Protein-coding gene in the species Homo sapiens

The dopamine receptor D4 is a dopamine D2-like G protein-coupled receptor encoded by the DRD4 gene on chromosome 11 at 11p15.5.

<span class="mw-page-title-main">Impulsivity</span> Tendency to act on a whim without considering consequences

In psychology, impulsivity is a tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences. Impulsive actions are typically "poorly conceived, prematurely expressed, unduly risky, or inappropriate to the situation that often result in undesirable consequences," which imperil long-term goals and strategies for success. Impulsivity can be classified as a multifactorial construct. A functional variety of impulsivity has also been suggested, which involves action without much forethought in appropriate situations that can and does result in desirable consequences. "When such actions have positive outcomes, they tend not to be seen as signs of impulsivity, but as indicators of boldness, quickness, spontaneity, courageousness, or unconventionality." Thus, the construct of impulsivity includes at least two independent components: first, acting without an appropriate amount of deliberation, which may or may not be functional; and second, choosing short-term gains over long-term ones.

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.

<span class="mw-page-title-main">C. Robert Cloninger</span> American psychiatrist and geneticist

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.

Tridimensional Personality Questionnaire (TPQ) is a personality test. It was devised by C. Robert Cloninger. A newer version of the questionnaire is called Temperament and Character Inventory.

In genetics, rs1800955 is a single nucleotide polymorphism (SNP). It is located in the promoter region of the DRD4 gene. This gene codes for the dopamine receptor D4.

<span class="mw-page-title-main">Reward dependence</span>

Reward dependence (RD) 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.

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.

Persistence(PS) is a key personality trait identified by psychiatrist C. Robert Cloninger in his Psychobiological Model of Personality. It describes an individual's propensity to remain motivated, resilient and goal-driven in the face of challenges and difficulties they may encounter whilst carrying out tasks and working towards goals. More precisely, persistence refers to “perseverance in spite of fatigue or frustration”. According to Cloninger, this perseverance demonstrates a psychological determination that is foundational in aiding an individual's long-term success in achieving goals.

Reinforcement sensitivity theory (RST) proposes three brain-behavioral systems that underlie individual differences in sensitivity to reward, punishment, and motivation. While not originally defined as a theory of personality, the RST has been used to study and predict anxiety, impulsivity, and extraversion. The theory evolved from Gray's biopsychological theory of personality to incorporate findings from a number of areas in psychology and neuroscience, culminating in a major revision in 2000. The revised theory distinguishes between fear and anxiety and proposes functionally related subsystems. Measures of RST have not been widely adapted to reflect the revised theory due to disagreement over related versus independent subsystems. Despite this controversy, RST informed the study of anxiety disorders in clinical settings and continues to be used today to study and predict work performance. RST, built upon Gray's behavioral inhibition system (BIS) and behavioral activation system (BAS) understanding, also may help to suggest predispositions to and predict alcohol and drug abuse. RST, a continuously evolving paradigm, is the subject of multiple areas of contemporary psychological enquiry.

Self-directedness is a personality trait held by someone with characteristic 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.

The alternative five factor 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.

The biological basis of personality is a collection of brain systems and mechanisms that underlie human personality. Human neurobiology, especially as it relates to complex traits and behaviors, is not well understood, but research into the neuroanatomical and functional underpinnings of personality are an active field of research. Animal models of behavior, molecular biology, and brain imaging techniques have provided some insight into human personality, especially trait theories.

Addiction vulnerability is an individual's risk of developing an addiction during their lifetime. There are a range of genetic and environmental risk factors for developing an addiction that vary across the population. Genetic and environmental risk factors each account for roughly half of an individual's risk for developing an addiction; the contribution from epigenetic risk factors to the total risk is unknown. Even in individuals with a relatively low genetic risk, exposure to sufficiently high doses of an addictive drug for a long period of time can result in an addiction. In other words, anyone can become an individual with a substance use disorder under particular circumstances. Research is working toward establishing a comprehensive picture of the neurobiology of addiction vulnerability, including all factors at work in propensity for addiction.

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:

Functional Ensemble of Temperament (FET) is a neurochemical model suggesting specific functional roles of main neurotransmitter systems in the regulation of behaviour.

Personality traits are patterns of thoughts, feelings and behaviors that reflect the tendency to respond in certain ways under certain circumstances.

References

  1. ↑ 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.
  2. ↑ Arenas, M. C.; Manzanedo, C. (2016). "Novelty Seeking". Encyclopedia of Personality and Individual Differences. pp. 1–4. doi:10.1007/978-3-319-28099-8_1095-1. ISBN   978-3-319-28099-8. S2CID   243640948.
  3. ↑ "Variety Seeking | Universal Marketing Dictionary". 24 May 2018.
  4. ↑ C. R. Cloninger (Autumn 1986). "A unified biosocial theory of personality and its role in the development of anxiety states". Psychiatric Developments . 4 (3): 167–226. PMID   3809156.
  5. ↑ Loranger, Armand Walter (1997). Assessment and diagnosis of personality disorders. Cambridge University Press. p. 14. ISBN   978-0-521-58043-4.
  6. 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.
  7. ↑ Costa, Vincent D.; Tran, Valery L.; Turchi, Janita; Averbeck, Bruno B. (2014). "Dopamine modulates novelty-seeking behavior during decision making". Behavioral Neuroscience. 128 (4): 413–424. doi:10.1037/a0037128. PMC   5861725 . PMID   24911320.
  8. ↑ Lusher, JM; Chandler, C; Ball, D (September 2001). "Dopamine D4 receptor gene (DRD4) is associated with Novelty Seeking (NS) and substance abuse: the saga continues…". Molecular Psychiatry. 6 (5): 497–499. doi:10.1038/sj.mp.4000918. PMID   11526461. S2CID   28201048.
  9. ↑ McKusick, Victor A.; Hurko, Orest; Black, John Logan III; Kniffin, Cassandra L. (4 May 2010). "Novelty Seeking Personality Trait". Online Mendelian Inheritance in Man . Johns Hopkins University.
  10. ↑ Patoine, Brenda (13 October 2009). "Desperately Seeking Sensation: Fear, Reward, and the Human Need for Novelty: Neuroscience Begins to Shine Light on the Neural Basis of Sensation-Seeking". The Dana Foundation.
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