Nepedia
Back to Discover
Advanced Reader
🧬

Surprise (emotion)

life science Maturity 11-13 Next article →

Surprise is a rapid and fleeting mental and physiological state. It occurs when there is a gap between our expectations and reality. This gap represents the difference between our assumptions about worldly events and how those events actually turn out. Surprise can have any valence, which means it can be positive, negative, or neutral. A positive surprise might be a surprise birthday party. A negative surprise could be receiving a parking ticket. Because it helps us notice new things, it is considered an evolutionarily adaptive emotion. Experts like Paul Ekman and Carroll Izard include surprise in their taxonomies as a primary or basic emotion. They suggest that surprise is innate and universal across all human cultures.

Carol Burnett 1958
Carol Burnett 1958

Physiologically, surprise is closely linked to the startle response. The main function of this response is to interrupt an ongoing action. It reorients our attention toward a new and potentially significant event. This process involves an automatic redirection of focus. For a brief moment, this causes tension in the muscles, especially in the neck. This response happens extremely fast within the body. For instance, a loud noise can reach the pons, a part of the brain, within 3 to 8 milliseconds. The full startle reflex can occur in less than two tenths of a second.

Daumier dimanche au musee
Daumier dimanche au musee

If the surprise is perceived as a threat to survival, it can trigger the fight-or-flight response. This occurs when a person perceives a harmful event, an attack, or a threat. The body responds by releasing adrenaline to provide a boost of energy. This energy allows the individual to either escape or fight the perceived danger. This specific reaction generally has a negative valence. While the core appraisal of surprise is that something is new, the way we cope with the event determines our next feeling. For example, how we appraise our coping mechanism can lead to further feelings of confusion or interest.

STS-51L riadiace stredisko
STS-51L riadiace stredisko

Humans express surprise through several distinct facial features. The most distinctive and predictable sign is the raising of the eyebrows. This action often creates horizontal wrinkles across the forehead.

Charles Bell, Essays on the anatomy of Wellcome L0031951
Charles Bell, Essays on the anatomy of Wellcome L0031951

Another common feature is the opening of the eyelids. The upper lid raises and the lower lid draws down. This often exposes the white sclera above and below the iris. You may also see a dropped jaw where the lips and teeth are parted. The intensity of the surprise is often associated with how much the jaw drops. Spontaneous surprise is often expressed for only a fraction of a second. It may be followed immediately by fear, joy, or confusion.

Rembrandt - Belshazzar's Feast - WGA19123
Rembrandt - Belshazzar's Feast - WGA19123

Other non-verbal responses involve the movement of the pupils. This is known as mydriasis when the pupils dilate, or expand. It is known as miosis when the pupils constrict, or get smaller.

Human eye in dim light
Human eye in dim light

Some studies suggest that pupil dilation can indicate positive valence. Other studies suggest that dilation is actually a sign of general autonomous arousal. This means it happens during both positive and negative stimuli. Beyond the face, surprise can be influenced by voice inflection, pitch, and volume. Factors like distance, time, and the quality of eye contact also play a role. These cues help define the degree and the type of surprise being felt.

In interpersonal communication, surprise is explained by the Expectancy Violation Theory, or EVT. This theory suggests that three main factors influence our expectations. First, interactant variables involve traits like age, sex, race, and appearance. Second, environmental variables include the surroundings and the timing of the interaction. Third, interaction variables involve social norms and cultural norms. A violation of one or more of these factors can cause surprise. For example, a person might use verbal violations like shouts, screams, or gasps. According to Language Expectancy Theory, we develop norms for how language should be used. When these norms are broken, surprise occurs.

Rembrandt - Belshazzar's Feast - WGA19123
Rembrandt - Belshazzar's Feast - WGA19123

Surprise can also lead to significant changes in how we view others. EVT proposes that positive violations can increase the attraction of the person causing the surprise. This can enhance their credibility, power, and persuasiveness. For example, if a person with low credibility makes a very persuasive argument, it can cause a positive surprise. This can change a listener's beliefs or emotions. Conversely, negative violations may decrease these same qualities. It is also important to note the role of familiarity. As people become accustomed to certain types of surprises, the intensity of the feeling decreases. If you expect a certain event, such as a jump scare in a movie, the violation of expectation is smaller. This makes the resulting surprise much less intense.

STS-51L riadiace stredisko
STS-51L riadiace stredisko
755 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (7)
File:Charles Bell, Essays on the anatomy of Wellcome L0031951.jpg
Charles Bell, Essays on the anatomy of...
File:STS-51L riadiace stredisko.jpg
STS-51L riadiace stredisko.jpg
File:Carol Burnett 1958.JPG
Carol Burnett 1958.JPG
File:Daumier dimanche au musee.jpg
Daumier dimanche au musee.jpg
File:D. Pedro recevant des mains de L imperatrice l epée du prince Eugene, son père e.b.c.jpg
D. Pedro recevant des mains de L...
File:Rembrandt - Belshazzar's Feast - WGA19123.jpg
Rembrandt - Belshazzar's Feast - WGA19123.jpg
File:Human eye in dim light.jpg
Human eye in dim light.jpg
More to explore

✨ What else?

Related topics you might enjoy

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.