Vigtige artikler Flashcards
Shariff & Tracy:
What is the central purpose of the article?
Trying to get an understanding of WHY humans univesally display and recognize distinct emotions
Shariff & Tracy:
Darwin (1872) proposed that emotion expressions evolved to serve 2 classes of function, which?
- Preparing the organism to respond adaptively to environmentally recurrent stimuli
- communicating critical social information
Shariff & Tracy:
what does the “two-stage-model” of emotion-expression evolution say?
Internal physiological regulation was likely the adaptive function of emotion expressions, which later evolved to serve communicative functions.
Shariff & Tracy:
According to the functionalist perspective, what are emotions then?
from their perspective emotions are generalized and (theoretically) coordinated suites of behavioral, physiological, cognitive, and affective processes selected to promote automatic, adaptive responses to recurrent environmental events that pose fitness challenges.
e. g. fear:
- detection of a potentially threatening stimuli elicits a cascade of responses (heavier breathing, sweating etc.). These responses facilitate the ability to escape.
Shariff & Tracy:
Evolutionary biologists make an important distinction between cues and signals. What does they mean by:
1. cues
2. signals
- a cue provides information gleaned as a by-product of something that serves an alternate adaptive purpose.
- e.g. chewing is a reliable cue that someone is eating, but it did not evolve to communicate that information - signals are evolved specifically for the purpose of communication
- e.g. peacock plumage evolved as a hard-to-fake signal of mate quality
Shariff & Tracy:
What does the “two-stage-model” say about cues and signals?
That emotion expressions began as cues - providing information about internal states but not existing for that reason - but eventually transformed, in both form and function, to become signals (because of our social interaction and need to communicate).
Shariff & Tracy:
What is ritualization?
a process of change well reasearched in evolutionary zoology whereby an animal’s nonverbal displays become exaggerated, more visible, distinctive, and/or prototypic in order to function as reliable and effective signals.
Turkheimer:
What does the article say about genotype and environment?
Genotype is a more systematic source of variability than environment, but for reasons that are methodological rather than substantive.
Turkheimer:
What does the article say about twin studies?
Twinstudies offer a useful methodological shortcut, but do not show that genes are more fundamental than environments.
Turkheimer:
In the article it says that “the nature-nurture debate is over” - what is the outcome?
That everything is heritable.
Turkheimer:
The article mentions 3 laws of behavior genetics, which?
- law: All human behavioral traits are heritable (both because of influence of the environment and the genes - figure 1)
- law: The effect of being raised in the same family is smaller than the effect of genes
- law: a substantial portion of the variation in complex human behavioral traits is not accounted for by the effects of genes or families (nonshared environment/individual environment)
Turkheimer:
Even after the effects of genes and the shared effects of families have been accounted for, around ?? % of the differences among siblings is still left unexplained.
50 %
Turkheimer:
The unexplained portion of the differences among siblings are also called??
nonshared environment
Turkheimer:
The article states two possibilies for what quilifies an environmental event as nonshared, which?
- Objective: an event is nonshared if it is experienced by only one sibling in a family, regardless of the consequences it produces.
- effective: an environmental event is nonshared if it makes siblings different rather than similar, regardless of whether it was experienced by one or both of them.
Chabris et al:
The article propose a 4. law of behavior genetics as an addition to the 3 laws mentioned by Turkheimer. What is the 4. law?
- law: a typical human behavioral trait is associated with very many genetic variants, each of which accounts for a very small percentage of the behavioral variability
(based on the human genome project and differences in alleles (base pairs) in genes of humans)
Chabris et al:
What is behavioral genetics?
The study of the manner in which genetic variation affects psychological phenotypes (traits), including cognitive abilities, personality, mental illness and social attitudes.
Chabris et al:
The article highlights two possible explanations for the 4. law, which?
- causal chains from DNA variation to behavioral phenotypes are likely very long (longer than for physical traits - e.g. eyecolor), so the effect of any one variant on any one such trait is likely to be small.
- when a population is already well adapted to its environment, mutations with large effects on a focal trait are likely to have deleterious side effects.
If the effect of a genetic variant is small enough, however, then its population frequency has some chance of drifting upward to a detectable level.
Chabris et al:
is it TRUE/FALSE that there might be a gene for one complex trait?
FALSE! it is mistaken to believe that
What the 4. law adds to this understanding is that most genetic variability in behavior between individuals is attributable to genetic differences that are each responsible for very small behavioral differences.
Bang Petersen (HEP): What is evolutionary political psychology?
The field concerned with the application of evolutionary psychology to the study of politics and the nature of the human political animal.
Bang Petersen (HEP): According to the article, what is politics?
Politics aims to challenge and change other’s expectations about entitlement. It is produced by adaptations designed to solve the coordination problems that emerge from group living.
Bang Petersen (HEP): The article mentions 4 key principles guiding an evolutionary approach to the study of politics in general and of mass politics in particular. What are the 4 key principles?
- principle: evolved political psychology is designed to operate adaptively within and between small-scale groups.
- when modern individuals
reason about mass political issues such as criminal justice, social welfare and immigration, they reason about them using psychological mechanisms designed to handle related adaptive problems such as counter-exploitation, cheater-detection and newcomers in the context of small-scale, ancestral group life. - principle: evolved political psychology provides a “default” structure to mass politics.
- the evolved, universal human political psychology is predicted to provide an underlying structure for political processes and institutions in modern mass societies. Institutions that “fit” or resonate with evolved psychology will be more likely to emerge. - principle: Politics is an informational arms race and evolved political psychology reflects the co-evolution of informational strategies and counterstrategies.
- In modern politics, the strategic use of information is clear in everything from military parades (signaling superior strength) to denigration of leaders of rival political parties (signalling superior leadership). - principle: In mass politics, evolved political psychology is responding to events and groups without direct experience but on the basis of mental simulations aided by information from others
Bang Petersen (HEP): To engage in political behavior, an actor needs to be able to solve 2 overarching adaptive problems, which?
- the evaluation problem: political behavior requires abilities to pass judgments on resource distributions and the rules giving rise to them.
- the behavioral problem: political behavior requires power to change the rules into alignment with ones evaluation.
Bang Petersen (HEP): according to the evolutionary approach, how do people favor policies related to distribution of resources?
Individuals favor policies that favor the individual
- ancestrally the favored resource was food, help, mating opportunities
- in modern politics, a favored resource is money
Bang Petersen (HEP): What do we vote for on the most general level according to the evolutionary approach?
At the most general level, the evolutionary approach entails the prediction that an individual’s political judgments track whether the rule under ancestral circumstances would involve fitness benefits or costs for the individual given his or hers individual and situational characteristics.