What Are Emotions and How Do They Work?
The human mind evolved key adaptations to facilitate our ancient ancestors’ survival and reproductive challenges. While the environment we live in has changed dramatically, we still share their capacity for problem solving, perception, belief systems, and emotional thinking (Workman & Reader, 2015).
A definition of emotional thinking must, therefore, not only (i) cater to the range of emotions we possess (including both positive and negative); it should also (ii) explain how we react physically, psychologically, and cognitively to everyday events (proximate factors); and (iii) explain why the mechanism evolved over many generations (ultimate factors).
Evolutionary psychologist Randolph Nesse (1990) describes emotions as “specialized modes of operation shaped by natural selection” to influence behavior in response to “threats and opportunities.”
After all, evolution’s psychological adaptations are not only for problem solving, but also for helping and motivating the individual to maintain and sustain goal-directed behavior. Our ancestors had to identify reliable food sources, avoid being eaten, protect their young, and find a suitable sexual partner (Workman & Reader, 2015).
Emotions – such as interest, sadness, and anger – are crucial factors in such motivation, driving us to both act and react. However, while there are clear links, it is worth noting that emotions differ from motivation regarding their expression. For example, happiness and anger have physiological responses, such as increased heart rate and sweating, not shared by motivation.
Indeed, Nesse (1990) suggested there are three components to emotions: physiological, psychological, and behavioral. For example, a fear of heights may lead to an increased heart rate and cortisol production, psychological coping strategies, and specific behavior such as checking and re-checking safety equipment (Diemer, Lohkamp, Mühlberger, & Zwanzger, 2016).
Recently, research has begun to provide insight into what is happening in the brain when we experience emotion.
Advanced brain scanning using positron emission tomography and functional magnetic resonance imaging has identified two potential areas engaged in regulating and managing our emotions (Workman & Reader, 2015).
- The amygdala, a central part of the limbic system, has been recognized in brain-injured patients as central to identifying emotions in others’ faces, such as fear, sadness, and anger.
- The orbitofrontal cortex – vital in many higher-order functions such as reasoning, processing language, and even consciousness – if damaged, dramatically changes personality and emotional response (Eysenck & Keane, 2015).
Finally, before leaving the physiology behind, it is worth noting that the brain is also underpinned by complex chemical activity. Our emotional responses are entirely driven by hormones such as adrenalin (epinephrine), testosterone, and cortisol.
However, while physiology’s importance in determining our emotions is evident, how these emotions are displayed is modified by cultural factors known as display rules (De Gelder & Huis in ‘t Veld, 2016). An individual’s culture dramatically affects how we express positive emotions, such as happiness, and negative emotions, such as anger.
To summarize, emotional responses are highly complex and dictated by genetic predispositions from birth onward as well as personal experience.
The Important Role of Negative Emotions
Whether emotions are deemed positive or negative by psychology or societal norms can sometimes appear arbitrary.
After all, while the renowned Dr. Ekman, American psychologist and professor emeritus at the University of California (1972), identified that facial expressions of happiness, anger, fear, and enjoyment are recognized worldwide, their cultural acceptance varies considerably.
For example, while many of us view anger as inappropriate in parenting, when a hostile tribe confronted our hunter–gather ancestors, it was not only suitable, but potentially life saving.
Indeed, emotions, whether judged positive or negative, are all impulses to act. Therefore, each of the following prepares the body for very different responses (Goleman, 2006).
Negative emotions include:
- Anger – outrage, resentment, irritability, and animosity
- Sadness – grief, gloom, melancholy, and despair
- Fear – anxiety, nervousness, dread, and concern
- Disgust – contempt, revulsion, disdain, and contempt
Positive emotions include:
- Enjoyment – happiness, joy, delight, euphoria
- Love – trust, acceptance, adoration, and kindness
- Positive surprise – thrill, wonder, and amazement
What then does the research tell us about negative emotions?
- Memories related to being happy, in love, calm, and experiencing positive surprises are more easily recalled than negative emotions, such as being sad, afraid, angry, or experiencing unwanted surprises (Talarico, Berntsen, & Rubin, 2009).
- There are some clear physical and behavioral reactions to negative emotions. Disgust is associated with narrowing the eyes and field of vision, reducing visual acuity, and recognizing something damaging (for example, rotten food). Fear, on the other hand, results in the widening of the eyes, an increased ability to detect visual stimuli, and detecting and tracking threats (Lee, Mirza, Flanagan, & Anderson, 2014).
- A study including participants from 46 countries concluded that while influenced by cultural values (individualism and survival/self-expression), experiencing positive emotions was more critical to increased life satisfaction than reducing negative emotions (Kuppens, Realo, & Diener, 2008).
- Research found that entrepreneurs are more likely to negatively evaluate a business opportunity when experiencing negative emotions such as fear (Grichnik, Smeja, & Welpe, 2010).
- Students with a tendency toward negative emotions such as boredom perform less well in learning activities (Wortha, Azevedo, Taub, & Narciss, 2019).
It is self-evident that negative emotions have an essential role in our evolutionary past and under specific conditions in the modern world. For example, fear may stop us from crossing at a dangerous place on the road or climbing a rock face without adequate protection.
However, when emotions such as anger, sadness, and fear take over and negatively impact the quality of our lives, it may be time to seek help.
What our readers think
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Very informative
Thank you