Interpersonal relationships in the context of "Friendship"

Interdependence theory is a social exchange theory developed in social psychology that examines how interpersonal relationships are defined through interpersonal interdependence, which is "the process by which interacting people influence one another's experiences". Originally proposed by Harold H. Kelley and John Thibaut in 1959, the theory provides a conceptual framework for analyzing the structure of interpersonal situations and how individuals' outcomes depend not only on their own actions but also on the actions of others.

The most basic principle of the theory is encapsulated in the equation I = ƒ[A, B, S], which states that all interpersonal interactions (I) are a function (ƒ) of the given situation (S), plus the actions and characteristics of the individuals (A & B) in the interaction. This equation represents how people's behaviors, thoughts, and emotions in relationships are influenced by both situational structures and psychological processes.

Well-being is what is ultimately good for a person. Also called "welfare" and "quality of life", it is a measure of how well life is going for someone. It is a central goal of many individual and societal endeavors.

Subjective well-being refers to how a person feels about and evaluates their life. Objective well-being encompasses factors that can be assessed from an external perspective, such as health, income, and security. Individual well-being concerns the quality of life of a particular person, whereas community well-being measures how well a group of people functions and thrives. Various types of well-being are categorized based on the domain of life to which they belong, such as physical, psychological, emotional, social, and economic well-being.

Haptic communication is nonverbal communication and interaction via the sense of touch. Touch can come in many different forms, some can promote physical and psychological well-being. A warm, loving touch can lead to positive outcomes while a violent touch can ultimately lead to a negative outcome. The sense of touch allows one to experience different sensations such as pleasure, pain, heat, or cold. One of the most significant aspects of touch is the ability to convey and enhance physical intimacy. The sense of touch is the fundamental component of haptic communication for interpersonal relationships. Touch can be categorized in many terms such as positive, playful, control, ritualistic, task-related or unintentional. It can be both sexual (kissing is one example that some perceive as sexual), and platonic (such as hugging or a handshake). Striking, pushing, pulling, pinching, kicking, strangling and hand-to-hand fighting are forms of touch in the context of physical abuse.

Touch is the most sophisticated and intimate of the five senses. Touch or haptics, from the ancient Greek word haptikos, is vital for survival.Touch is the first sense to develop in the fetus. The development of an infant's haptic senses and how it relates to the development of the other senses, such as vision, has been the target of much research. Human babies have been observed to have enormous difficulty surviving if they do not possess a sense of touch, even if they retain sight and hearing. Infants who can perceive through touch, even without sight and hearing, tend to fare much better.

A self-serving bias is any cognitive or perceptual process that is distorted by the need to maintain and enhance self-esteem, or the tendency to perceive oneself in an overly favorable manner. It is the belief that individuals tend to ascribe success to their own abilities and efforts, but ascribe failure to external factors. When individuals reject the validity of negative feedback, focus on their strengths and achievements but overlook their faults and failures, or take more credit for their group's work than they give to other members, they are protecting their self-esteem from threat and injury. These cognitive and perceptual tendencies perpetuate illusions and error, but they also serve the self's need for esteem. For example, a student who attributes earning a good grade on an exam to their own intelligence and preparation but attributes earning a poor grade to the teacher's poor teaching ability or unfair test questions might be exhibiting a self-serving bias. Studies have shown that similar attributions are made in various situations, such as the workplace, interpersonal relationships, sports, and consumer decisions.

Both motivational processes (i.e. self-enhancement, self-presentation) and cognitive processes (i.e. locus of control, self-esteem) influence the self-serving bias. There are both cross-cultural (i.e. individualistic and collectivistic culture differences) and special clinical population (i.e. depression) considerations within the bias. Much of the research on the self-serving bias has used participant self-reports of attribution based on experimental manipulation of task outcomes or in naturalistic situations. Some more modern research, however, has shifted focus to physiological manipulations, such as emotional inducement and neural activation, in an attempt to better understand the biological mechanisms that contribute to the self-serving bias.

Psychological trauma (also known as mental trauma, psychiatric trauma, emotional damage, or psychotrauma) is an emotional response caused by severe distressing events, such as bodily injury, sexual violence, or other threats to the life of the subject or their loved ones; indirect exposure, such as from watching television news, may be extremely distressing and can produce an involuntary and possibly overwhelming physiological stress response, but does not always produce trauma per se. Examples of distressing events include violence, rape, or a terrorist attack.

Short-term reactions such as psychological shock and psychological denial typically follow. Long-term reactions and effects include flashbacks, panic attacks, insomnia, nightmare disorder, difficulties with interpersonal relationships, post-traumatic stress disorder (PTSD), and brief psychotic disorder. Physical symptoms including migraines, hyperventilation, hyperhidrosis, and nausea are often associated with or made worse by trauma.

Herbert "Harry" Stack Sullivan (February 21, 1892 – January 14, 1949) was an American neo-Freudian psychiatrist and psychoanalyst who held that "personality can never be isolated from the complex interpersonal relationships in which [a] person lives" and that "[t]he field of psychiatry is the field of interpersonal relations under any and all circumstances in which [such] relations exist". Having studied therapists Sigmund Freud, Adolf Meyer, and William Alanson White, he devoted years of clinical and research work to helping people with psychotic illness.

Social disruption is a term used in sociology to describe the alteration, dysfunction or breakdown of social life, often in a community setting. Social disruption implies a radical transformation, in which the old certainties of modern society are falling away and something quite new is emerging. Social disruption might be caused through natural disasters, massive human displacements, rapid economic, technological and demographic change but also due to controversial policy-making.

Social disruptions are for example rising sea levels that are creating new landscapes, drawing new world maps whose key lines are not traditional boundaries between nation-states but elevations above sea level. On the local level, an example would be the closing of a community grocery store, which might cause social disruption in a community by removing a "meeting ground" for community members to develop interpersonal relationships and community solidarity.

Relationship quality refers to the perceived quality of a close relationship (i.e., romantic relationship, friendship, or family).

Relationship quality (sometimes used interchangeably with relationship satisfaction, relationship flourishing, or relationship happiness), in the context of close interpersonal relationships is generally defined as a reflection of a couple's overall feelings towards their relationship. More simply, it is the extent to which members in a relationship (romantic or otherwise) view their relationship as positive or negative.