Emotion

Emotions are physical and mental states brought on by neurophysiological changes, variously associated with thoughts, feelings, behavioral responses, and a degree of pleasure or displeasure.

[9][10] At one time, academics attempted to identify the emotion with one of the components: William James with a subjective experience, behaviorists with instrumental behavior, psychophysiologists with physiological changes, and so on.

In psychology and philosophy, emotion typically includes a subjective, conscious experience characterized primarily by psychophysiological expressions, biological reactions, and mental states.

In the Age of Enlightenment, Scottish thinker David Hume[21] proposed a revolutionary argument that sought to explain the main motivators of human action and conduct.

Later thinkers would propose that actions and emotions are deeply interrelated with social, political, historical, and cultural aspects of reality that would also come to be associated with sophisticated neurological and physiological research on the brain and other parts of the physical body.

Ekman's most influential work revolved around the finding that certain emotions appeared to be universally recognized, even in cultures that were preliterate and could not have learned associations for facial expressions through media.

In light of this, recent cross-cultural studies led by Daniel Cordaro and Dacher Keltner, both former students of Ekman, extended the list of universal emotions.

In addition to the original six, these studies provided evidence for amusement, awe, contentment, desire, embarrassment, pain, relief, and sympathy in both facial and vocal expressions.

[47] Jaak Panksepp carved out seven biologically inherited primary affective systems called SEEKING (expectancy), FEAR (anxiety), RAGE (anger), LUST (sexual excitement), CARE (nurturance), PANIC/GRIEF (sadness), and PLAY (social joy).

Using statistical methods to analyze emotional states elicited by short videos, Cowen and Keltner identified 27 varieties of emotional experience: admiration, adoration, aesthetic appreciation, amusement, anger, anxiety, awe, awkwardness, boredom, calmness, confusion, craving, disgust, empathic pain, entrancement, excitement, fear, horror, interest, joy, nostalgia, relief, romance, sadness, satisfaction, sexual desire, and surprise.

[53] In Hinduism, Bharata Muni enunciated the nine rasas (emotions) in the Nātyasāstra, an ancient Sanskrit text of dramatic theory and other performance arts, written between 200 BC and 200 AD.

[54] The theory of rasas still forms the aesthetic underpinning of all Indian classical dance and theatre, such as Bharatanatyam, kathak, Kuchipudi, Odissi, Manipuri, Kudiyattam, Kathakali and others.

[54] Bharata Muni established the following: Śṛṅgāraḥ (शृङ्गारः): Romance / Love / attractiveness, Hāsyam (हास्यं): Laughter / mirth / comedy, Raudram (रौद्रं): Fury / Anger, Kāruṇyam (कारुण्यं): Compassion / mercy, Bībhatsam (बीभत्सं): Disgust / aversion, Bhayānakam (भयानकं): Horror / terror, Veeram (वीरं): Pride / Heroism, Adbhutam (अद्भुतं): Surprise / wonder.

[62] Early modern views on emotion are developed in the works of philosophers such as René Descartes, Niccolò Machiavelli, Baruch Spinoza,[63] Thomas Hobbes[64] and David Hume.

The theory lost favor in the 20th century, but has regained popularity more recently due largely to theorists such as John T. Cacioppo,[74] Antonio Damasio,[75] Joseph E. LeDoux[76] and Robert Zajonc[77] who are able to appeal to neurological evidence.

[79] An example of this theory in action would be as follows: An emotion-evoking stimulus (snake) triggers a pattern of physiological response (increased heart rate, faster breathing, etc.

[84] He also believed that the richness, variety, and temporal course of emotional experiences could not stem from physiological reactions, that reflected fairly undifferentiated fight or flight responses.

[85] Stanley Schachter formulated his theory on the earlier work of a Spanish physician, Gregorio Marañón, who injected patients with epinephrine and subsequently asked them how they felt.

The central idea of the AIM is that affect, whether it is a positive or negative mood, can "infuse" or influence various cognitive activities, including information processing and judgments.

This theory has been applied in various contexts, including studies of personality, social psychology, and decision-making, to better understand how cognitive appraisal tendencies influence emotional and evaluative responses.

If distinguished from reactive responses of reptiles, emotions would then be mammalian elaborations of general vertebrate arousal patterns, in which neurochemicals (for example, dopamine, noradrenaline, and serotonin) step-up or step-down the brain's activity level, as visible in body movements, gestures and postures.

[33] For example, the emotion of love is proposed to be the expression of paleocircuits of the mammalian brain (specifically, modules of the cingulate cortex (or gyrus)) which facilitate the care, feeding, and grooming of offspring.

[101] The motor centers of reptiles react to sensory cues of vision, sound, touch, chemical, gravity, and motion with pre-set body movements and programmed postures.

The University of Queensland hosts EmoNet,[116] an e-mail distribution list representing a network of academics that facilitates scholarly discussion of all matters relating to the study of emotion in organizational settings.

Based on this analysis, he identified four emotions that all researchers consider being founded on human neurology including assertive-anger, aversion-fear, satisfaction-happiness, and disappointment-sadness.

He explained how the heightened state of emotional energy achieved during totemic rituals transported individuals above themselves giving them the sense that they were in the presence of a higher power, a force, that was embedded in the sacred objects that were worshipped.

Emotional energy is considered to be a feeling of confidence to take action and a boldness that one experiences when they are charged up from the collective effervescence generated during group gatherings that reach high levels of intensity.

This implies the need to comprehend the current emotional state, mental disposition or other behavioral motivation of a target audience located in a different culture, basically founded on its national, political, social, economic, and psychological peculiarities but also subject to the influence of circumstances and events.

[139] In the 2000s, research in computer science, engineering, psychology and neuroscience has been aimed at developing devices that recognize human affect display and model emotions.

The theory states that within human beings, as a response to experiences in the world, the autonomic nervous system creates physiological events such as muscular tension, a rise in heart rate, perspiration, and dryness of the mouth.

Sixteen faces expressing the human passions – colored engraving by J. Pass, 1821, after Charles Le Brun
Examples of basic emotions
The emotion wheel
Sorting emotions into unpleasant-pleasant and activated-calm.
Two dimensions of emotions, made accessible for practical use [ 49 ]
Timeline of some of the most prominent brain models of emotion in affective neuroscience