Understanding Laughter

What physical changes occur in the body when someone laughs?

• Jaw tightens, shoulders hunch, hands clench

• Abdominal muscles contract rapidly, breathing patterns alter, leg weakness occurs

• Heart rate increases, blood pressure rises, muscles tense up

• Eyes water, skin turns red, body temperature drops

What is one theory about the evolution of laughter?

• Laughter developed as a way to communicate during hunting

• Laughter evolved as a response to fear and danger

• Laughter originated as a signal of friendly, non-aggressive intent

• Laughter emerged as a form of dominance display

What is a common characteristic of laughter across different species?

• It is always a response to danger

• It is only observed in mammals, not birds

• It is contagious and can trigger similar responses in others

• It is primarily used for territorial marking

How does laughter affect the brain?

• It increases cortisol levels and decreases endorphins

• It triggers negative emotions and stress responses

• It releases feel-good neurotransmitters and reduces stress hormones

• It impairs cognitive function and memory

What is a distinguishing feature of fake laughter?

• It is produced in the same regions as genuine laughter

• It is quieter and less noticeable than real laughter

• It relies on speech-like pathways in the brain

• It activates older brain networks used for vocalizations

Why do scientists believe laughter is contagious?

• It is a survival instinct to mimic others' emotions

• It activates key brain regions that prompt similar reactions

• It is a learned behavior from childhood experiences

• It triggers involuntary muscle responses in the listener

What is the possible function of laughter in large social groups?

• To establish dominance and hierarchy

• To create tension and conflict within the group

• To discourage social interactions and bonding

• To convey subtle meanings and emotions through speech

How do observers differentiate between close friends and acquaintances based on laughter?

• By the pitch and tone of the laughter

• By the context in which the laughter occurs

• By the duration and intensity of the laughter

• By the presence of physical gestures accompanying the laughter

What is the potential impact of laughter on stress and health?

• It has no effect on stress levels or cardiovascular health

• It can worsen stress responses and lead to cardiovascular issues

• It may help cope with stress and improve cardiovascular health

• It only provides temporary relief but no long-term benefits

At what age can humans start laughing?

• Around 2 years old

• Before they can speak

• After they develop social interactions

• During adolescence