If Emotional Expression Is Hard-Wired by Evolution, Why Do People

question 337

Essay

If emotional expression is hard-wired by evolution, why do people across and within cultures disagree on the identification and interpretation of such expression?

Appreciate the role of similarity and shared attitudes in friendship and romantic relationships.

Recognize the role of physical arousal in the intensity of passionate love.

Understand the concept of the mere exposure effect and its influence on preference and liking.

Comprehend how social exchange and reward theories explain interpersonal relationships.

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Definitions:

Frequency-Dependent Selection

An evolutionary process by which the fitness of a phenotype or genotype depends on its frequency relative to other phenotypes or genotypes in a given population.

Genetic Variation

The diversity in gene frequencies within a population, which can result from mutation, genetic recombination, and gene flow, contributing to biological diversity.

Prey Species

Animals that are hunted and consumed by other animals (predators) for food.

Founder Effect

A genetic phenomenon that occurs when a small group of individuals breaks away from a larger population to establish a new population, leading to a reduction in genetic variation.