Stereotype embodiment theory (SET) is a theoretical model first posited by psychologist Becca Levy to explain the process by which age stereotypes influence the health of older adults. [1] There are multiple well-documented effects of age stereotypes on a number of cognitive and physical outcomes (including memory, cardiovascular reactivity, and longevity). [2] [3] [4] [5]
SET explains these findings according to a three-step process:
Underlying these three steps are SET's four main theoretical premises. According to Levy (2009): "The theory has four components: The stereotypes (a) become internalized across the lifespan, (b) can operate unconsciously, (c) gain salience from self-relevance, and (d) utilize multiple pathways." [1]
Although this theory was developed to explain the operation of age stereotypes across the lifespan, it may also explain how other types of self-stereotypes operate, such as race stereotypes among African Americans and gender stereotypes among women.
Age stereotypes are internalized starting in early childhood. [6] This process of early internalization is facilitated by the lack of resistances that are usually present when stereotypes are relevant to the personal identity of those exposed to them. [7] In North America and Europe, these stereotypes tend to be negative. [3] [8] [9] [10] [11]
This process continues on into early adulthood, where the acceptance and invocation of negative age stereotypes may represent short-term benefits in the form of greater social and economic resources being allocated to younger, rather than older, adults. Hence, younger adult workers tend to assume that older adult workers are less productive than their younger counterparts even when regular contact with older adult workers proves these assumptions inaccurate. [12] [13]
Age stereotypes have been shown to operate unconsciously. For instance, a 1990 study by Purdue and Gurtman demonstrated that the associations made by their college-aged participants between certain negative traits and old age had an "automatic" component, such that, when their participants were subliminally primed (i.e., presented with stimuli at speeds sufficient for perception, but not recognition) with the word "old", they made associations with negative traits significantly faster than when they were subliminally primed with the word "young". [14]
Unconscious operation of age stereotypes in older individuals was demonstrated for the first time by Levy (1996) in an experimental study that showed age stereotypes can impact memory of older individuals. These age stereotype-memory findings have been replicated in a number of different laboratories. [15] Additional subliminal priming experiments have further linked the unconscious activation of age stereotypes to an individual's "will to live", such that older adults subliminally exposed to positive age stereotypes tended to accept life-prolonging interventions, while those exposed to negative age stereotypes tended to reject such interventions. [16] Additionally, research conducted using the implicit-association test method has found further evidence for the presence of robust age stereotypes that operate independently of explicitly held age stereotypes. [17] [18]
Levy and Mahzarin Banaji are credited with coining the term "implicit ageism" to describe the unconscious operation of age stereotypes and age prejudice.
Levy (2003), in paraphrasing Snyder and Miene (1994), notes that "the old is the only outgroup that inevitably becomes an ingroup for individuals who live long enough" (pp. 33–54). [19] In similar fashion, age stereotypes that at one point were directed outwardly at others who were perceived to be "old" are eventually directed inwardly at the self as age self-stereotypes when that self is recognized to be "old". [19] [20]
These age self-stereotypes continue to be predominantly negative [18] and exert negative influences on cognitive and physical health. It is worth noting that positive age stereotypes do exist, and where they predominate they exert similarly positive effects on individual health. [9]
The ways in which age stereotypes exert their influence on individual health can be quite varied. However, in general, it is hypothesized that these stereotypes exert their influence according to three primary mechanisms: psychological, behavioral, and physiological. [1]
The psychological mechanism operates via self-fulfilling expectations. For example, in a large longitudinal study of twenty years, Levy and colleagues found that those with more positive self-perceptions of aging at baseline tended to have better functional health and greater longevity. [4] [7] Another study, to better establish the causal relationship between beliefs about one's own aging process and subsequent health outcomes, measured these outcomes as a product of randomly assigned, experimental primes. This study found that individuals performed better on cognitive and physical tasks when first subliminally primed with positive age stereotypes, and performed worse when first subliminally primed with negative age stereotypes. [21] Additionally, this study demonstrated a "stereotype-matching effect" whereby the impact of positive and negative age stereotypes on physical and mental health was most greatly manifest when the content of the stereotypes corresponded to the particular health outcome under observation.
The behavioral mechanism operates via health practices. Specifically, when health problems are seen as inevitable consequences of growing old, such perceptions can lead older individuals to consider healthy behaviors as futile [22] and may lead to reductions in self-efficacy. [16] Conversely, Levy and Myers (2004) found that older adults with more positive self-perceptions of aging were significantly more likely to engage in health practices over time than those with more negative self-perceptions of aging.
The physiological mechanism operates via the autonomic nervous system. Cardiovascular reactivity, a measure of the autonomic nervous system's response to stress, is heightened in the presence of subliminally primed negative age stereotypes and reduced in the presence of subliminally primed positive age stereotypes. [3] While occasional stress is not harmful, repeated elevation of cardiovascular response to stress can be quite detrimental to cardiac health. In fact, Levy and colleagues (2009) found that possessing negative age stereotypes in younger life can double the risk of having an adverse cardiovascular event after the age of 60. [21]
Aging has traditionally been explained in terms of physiological processes that lead to inevitable decline. [23] However, more recent findings suggest that aging is a more subjective experience with health outcomes tied as intimately to social mores and behavior as they are to human biology. [21] Additionally, when age stereotypes have been examined, such examinations have focused on the "targeters" (usually younger adults) rather than the targets (older adults). SET has emerged in response to and as a result of these gaps in the field of health and aging.
Until the emergence of SET, stereotype threat theory (STT) has provided the primary means of explaining how stereotypes impact targeted individuals. Unlike SET, STT attempts to explain these outcomes solely as a result of individuals' reactions against negative stereotypes directed at them from external sources. Thus, stereotype threat does not allow for the possibility of stereotype internalization and only operates in response to negative stereotypes directed against an aware target. [24] Finally, STT assumes that the stereotype process is limited to short-term situations, as opposed to SET's assumption of a dynamic process that occurs across the lifespan.
In contrast to the theoretical assumptions laid out by STT, several lines of research have produced findings that support SET's suggestions that age stereotypes are internalized, can exert an effect regardless of the target's awareness, are effective in both negative and positive formulations, and can operate across the lifespan. O'Brien and Hummert (2006) compared SET and STT in a memory study that examined 2 divergent hypotheses–one predicted by SET and one predicted by STT–and found support for the one predicted by SET. [25]
Other relevant results that have laid the foundation for the development of SET are summarized here:
In psychology, illusory correlation is the phenomenon of perceiving a relationship between variables even when no such relationship exists. A false association may be formed because rare or novel occurrences are more salient and therefore tend to capture one's attention. This phenomenon is one way stereotypes form and endure. Hamilton & Rose (1980) found that stereotypes can lead people to expect certain groups and traits to fit together, and then to overestimate the frequency with which these correlations actually occur. These stereotypes can be learned and perpetuated without any actual contact occurring between the holder of the stereotype and the group it is about.
The implicit-association test (IAT) is a controversial assessment intended to detect subconscious associations between mental representations of objects (concepts) in memory. Its best-known application is the assessment of implicit stereotypes held by test subjects, such as associations between particular racial categories and stereotypes about those groups. The test has been applied to a variety of belief associations, such as those involving racial groups, gender, sexuality, age, and religion but also the self-esteem, political views, and predictions of the test taker. The implicit-association test is the subject of significant academic and popular debate regarding its validity, reliability, and usefulness in assessing implicit bias.
Stereotype threat is a situational predicament in which people are or feel themselves to be at risk of conforming to stereotypes about their social group. It is theorized to be a contributing factor to long-standing racial and gender gaps in academic performance. Since its introduction into the academic literature, stereotype threat has become one of the most widely studied topics in the field of social psychology.
System justification theory (SJT) is a theory within social psychology that system-justifying beliefs serve a psychologically palliative function. It proposes that people have several underlying needs, which vary from individual to individual, that can be satisfied by the defense and justification of the status quo, even when the system may be disadvantageous to certain people. People have epistemic, existential, and relational needs that are met by and manifest as ideological support for the prevailing structure of social, economic, and political norms. Need for order and stability, and thus resistance to change or alternatives, for example, can be a motivator for individuals to see the status quo as good, legitimate, and even desirable.
Barbara Lee Fredrickson is an American professor in the department of psychology at the University of North Carolina at Chapel Hill, where she is the Kenan Distinguished Professor of Psychology. She is also the Principal Investigator of the Positive Emotions and Psychophysiology Lab (PEPLab) at the University of North Carolina at Chapel Hill.
Mahzarin Rustum Banaji FBA is an American psychologist of Indian origin at Harvard University, known for her work popularizing the concept of implicit bias in regard to race, gender, sexual orientation, and other factors.
Implicit cognition refers to unconscious influences such as knowledge, perception, or memory, that influence a person's behavior, even though they themselves have no conscious awareness whatsoever of those influences.
Laurie A. Rudman is a social psychology feminist professor as well as the Director of the Rutgers University Social Cognition Laboratory who has contributed a great deal of research to studies on implicit and explicit attitudes and stereotypes, stereotype maintenance processes, and the media's effects on attitudes, stereotypes, and behavior on the Feminism movement. She was awarded the 1994 Gordon Allport Intergroup Relations Prize for her research examining the effects of sexist advertising on men's behavior toward female job applicants.
Anthony Galt Greenwald is a social psychologist and, since 1986, professor of psychology at University of Washington.
Implicit self-esteem refers to a person's disposition to evaluate themselves in a spontaneous, automatic, or unconscious manner. It contrasts with explicit self-esteem, which entails more conscious and reflective self-evaluation. Both explicit and implicit self-esteem are constituents of self-esteem.
Implicit attitudes are evaluations that occur without conscious awareness towards an attitude object or the self. These evaluations are generally either favorable or unfavorable and come about from various influences in the individual experience. The commonly used definition of implicit attitude within cognitive and social psychology comes from Anthony Greenwald and Mahzarin Banaji's template for definitions of terms related to implicit cognition: "Implicit attitudes are introspectively unidentified traces of past experience that mediate favorable or unfavorable feeling, thought, or action toward social objects". These thoughts, feelings or actions have an influence on behavior that the individual may not be aware of.
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Becca R. Levy is a Professor of Epidemiology at Yale School of Public Health and Professor of Psychology at Yale University. She is a leading researcher in the fields of social gerontology and psychology of aging. She is credited with creating the field of how age stereotypes, which are assimilated from the culture, impact the health of older individuals. The Dean of Columbia School of Public Health describes Levy as "a pioneer" in the "growing body of impressive research showing that our attitudes toward aging affect our health, our resilience in the face of adversity, and our very survival."
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Albert Jan "Ap" Dijksterhuis is a Dutch Social Psychologist at Radboud University Nijmegen.
John Thomas Jost is a social psychologist best known for his work on system justification theory and the psychology of political ideology. Jost received his AB degree in Psychology and Human Development from Duke University (1989), where he studied with Irving E. Alexander, David Goldstein, and Lynn Hasher, and his PhD in Social and Political Psychology from Yale University (1995), where he was the last doctoral student of Leonard Doob and William J. McGuire. He was also a student of Mahzarin R. Banaji and a postdoctoral trainee of Arie W. Kruglanski.
Association in psychology refers to a mental connection between concepts, events, or mental states that usually stems from specific experiences. Associations are seen throughout several schools of thought in psychology including behaviorism, associationism, psychoanalysis, social psychology, and structuralism. The idea stems from Plato and Aristotle, especially with regard to the succession of memories, and it was carried on by philosophers such as John Locke, David Hume, David Hartley, and James Mill. It finds its place in modern psychology in such areas as memory, learning, and the study of neural pathways.