4.3

Psychology of Social Situations: Conformity and Obedience

• Power of Social Influence and Social Norms

  • Social psychology demonstrates the immense impact of social influence, which originates significantly from social norms—understood rules for accepted and expected behavior.
  • Norms vary across contexts (e.g., wearing jeans in high school settings versus formal business attire on Wall Street in New York or Bond Street in London) and maintain smooth societal function when followed.
  • Intense social pressure can drive individuals in destructive directions; isolated dissenters sharing grievances may escalate from rebels into terrorists.
  • Mass violence and self-harm exhibit violent social contagion and clustering tendencies. Following a mass killing involving $\ge 4\text{ people}$, the probability of a subsequent attack increases for the next $13\,\text{days}$ (Towers et al., 2015).

• Social Contagion and Human Mimicry

  • Social contagion refers to the spontaneous spread of behaviors, emotions, and ideas through groups.
  • Cross-species examples: A lion observing a pride member yawn becomes $100\times$ or more likely to yawn within the next $3\,\text{minutes}$ (Casetta et al., 2021).
  • Human automatic behaviors (yawning, laughing, coughing, scratching, staring upward, or checking mobile devices) spread rapidly through groups (Holle et al., 2012). Simply reading about yawning increases yawning behavior (Provine, 2012).
  • The Chameleon Effect: Identified by Tanya Chartrand and John Bargh (1999) as passive, unconscious mimicry of postures, gestures, and facial expressions. Experimental participants paired with accomplices who rubbed their faces or shook their feet naturally mirrored those exact physical actions.
  • Mood Contagion and Linkage: Humans adopt emotional tones, expressions, voice pitches, postures, and even grammatical structures of surrounding individuals (Ireland & Pennebaker, 2010). Hearing a neutral text read in a happy or sad voice creates corresponding mood contagion in listeners (Neumann & Strack, 2000).
  • British worker studies demonstrate mood linkage—the sharing and synchronization of moods within groups (Totterdell et al., 1998).
  • Empathic mimicking fosters interpersonal fondness, rapport, and mutual liking (Chartrand & van Baaren, 2009; Lakin et al., 2008; Kämpf et al., 2018). Walking alongside someone synchronizes movement patterns and elevates empathy (Webb et al., 2017).
  • Social networks serve as contagious pathways for emotional states, substance use, obesity-related habits, and sleep loss (Christakis & Fowler, 2009).
  • Positive Herding: On digital platforms, early positive product or media reviews trigger subsequent positive ratings (Muchnik et al., 2013).
  • Tragic forms of suggestibility: Highly publicized mass shootings lead to elevated gun sales and violent threats (Cooper, 1999; Porfiri et al., 2019), and publicized suicides often spark national spikes in suicide rates (Phillips et al., 1985, 1989).

• Conformity and Solomon Asch's Experiments

  • Solomon Asch (1955) conducted landmark trials to assess conformity when individual visual perception conflicted with unanimous group judgment.
  • Procedure: A participant was seated at a table with $5\text{ accomplices}$ acting as fellow subjects. The experimenter asked each person sequentially to match a standard line to one of $3\text{ comparison lines}$.
  • Baseline: College students tested individually made errors less than $1\%$ of the time.
  • Experimental Finding: When all $5\text{ accomplices}$ unanimously voiced a glaringly incorrect response (e.g., choosing Line 3 when Line 2 was identical to the standard line), participants conformed to the false majority over $\frac{1}{3}$ of the time ($> 33\%$).
  • Conditions Strengthening Conformity:
  • Feeling incompetent or insecure.
  • Being in a group with at least $3\text{ people}$.
  • Being in a completely unanimous group (a single dissenting voice drastically reduces conformity).
  • Admiring the status and attractiveness of the group.
  • Having made no prior commitment to any response.
  • Knowing that group members will observe the behavior.
  • Belonging to a culture that strongly encourages respect for social standards.

• Mechanisms of Social Influence

  • Normative Social Influence: Conforming to gain social approval or avoid rejection, rooted in the fundamental need to belong. Prominent in collectivist cultures and visible in compliance with dynamic norms (e.g., dietary shifts away from meat or sugary drinks; Sparkman & Walton, 2017, 2019).
  • Informational Social Influence: Conforming because one accepts others' opinions about reality as valid evidence. Example: A driver under the influence drove $30\,\text{miles}$ on the wrong side of a British highway, assuming hundreds of oncoming drivers were all on the wrong side of the road (Woolcock, 2004).
  • Cross-cultural analyses across $17\text{ countries}$ reveal lower overall conformity rates in individualist cultures (Bond & Smith, 1996).

• Stanley Milgram's Obedience Experiments

  • Stanley Milgram (1963, 1974) at Yale University investigated willingness to obey authority figures commanding acts that conflicted with personal conscience.
  • Setup: Nearly $1000\text{ participants}$ (mostly White males aged $20$ to $50$) drew slips making them the "teacher," while an accomplice was the "learner." Teachers administered electric shocks for incorrect word-pair answers, advancing switch-by-switch from $15\,\text{V}$ ("Slight Shock") to $450\,\text{V}$.
  • Learner Escalation: Cried out in pain at $120\,\text{V}$, shouted to be let out at $150\,\text{V}$ ("Strong Shock"), and became completely silent after $330\,\text{V}$.
  • Experimenter Commands: When teachers hesitated, the experimenter issued strict prods: "Please continue," "It is absolutely essential that you continue," or "You have no other choice, you must go on."
  • Findings: Prior predictions by nonparticipants and $40\text{ psychiatrists}$ estimated subjects would stop at the first sign of pain. In actual trials, over $60\%$ fully complied up to the final $450\,\text{V}$ switch. In a variation with a learner reporting a "slight heart condition," $65\%$ obeyed up to $450\,\text{V}$. Female participants exhibited identical obedience rates to males (Blass, 1999).
  • Modern Replications: Jerry Burger (2009) recorded a $70\%$ obedience rate to the $150\,\text{V}$ point in California; a Polish study found $90\%$ obedience to $150\,\text{V}$ (Doliński et al., 2017); a French reality TV replication yielded an $81\%$ obedience rate (Beauvois et al., 2012).
  • Ethics and Criticisms: Debates centered on deceptive practices and participant distress. Milgram asserted that $0\%$ reported long-term harm upon debriefing. Subsequent archive reviews indicate debriefing was less immediate and thorough, and participant distress was higher than claimed (Nicholson, 2011; Perry, 2013).
  • Conditions That Increase Obedience:
  • Presence of a close, legitimate authority figure (e.g., Temple University basketball coach ordering Nehemiah Ingram to commit hard fouls in 2005, breaking an opponent's arm in $4\,\text{minutes}$).
  • Backing by a prestigious institution (compliance dropped when dissociated from Yale).
  • Depersonalization or spatial distance of the victim (e.g., remote drone operators experience lower PTSD rates than ground combat soldiers).
  • Absence of role models for defiance (seeing no other participant disobey).
  • Historical Contexts: The 1994 Rwandan genocide; Reserve Police Battalion 101 in Jozefow, Poland (July 13, 1942: $485\text{ officers}$ executed $1500\text{ Jews}$ in $17\,\text{hours}$, though $20\%$ eventually dissented); Le Chambon French Protestant villagers who sheltered Jews under pastoral leadership; the 1852 Birkenhead steamship drill where British soldiers obeyed commands to stand at attention as the ship sank so civilians could board lifeboats.

• Individual Power and Minority Influence

  • Foot-in-the-Door Technique: Incremental escalation made large acts tolerable; starting with a small $15\,\text{V}$ shock led incrementally to $450\,\text{V}$.
  • When Milgram assigned $40\text{ men}$ to administer the reading test while an accomplice delivered the shocks, $93\%$ complied fully.
  • Minority Influence: The capacity of one or two individuals to sway majorities. Success depends primarily on holding unyieldingly to a position without waffling.
  • Historical figures demonstrating minority influence: August Landmesser (refusing the Nazi salute), Marina Ovsyannikova (interrupting Russian state news to protest the invasion of Ukraine), Greta Thunberg (starting a solo school climate strike in August 2018 that mobilized $4\times 10^6\text{ people}$ by September 2019), and Rosa Parks (refusing to yield her bus seat).

Group Behavior and Dynamics

• Social Facilitation

  • Norman Triplett (1898) observed that adolescents wound fishing reels faster in the presence of peers than alone.
  • Presence of others increases physiological arousal, which amplifies dominant responses: performance improves on simple or well-learned tasks and declines on complex or unlearned tasks (Zajonc, 1965; Guerin, 1986).
  • Pool players study (Michaels et al., 1982): Expert players improved accuracy from $71\%$ alone to $80\%$ when watched by $4\text{ observers}$; poor players dropped from $36\%$ alone to $25\%$ when watched.
  • Home Advantage: Across $250,000+\text{ athletic contests}$, home teams won $54\%$ in Major League Baseball, $60\%$ in NBA basketball, and $63\%$ in English Premier League soccer (dissipated during pandemic empty-stadium games).
  • Crowding Effects: High population density triggers arousal, enhancing comedic reactions in full rooms and exaggerating emotional evaluations of friendly or unfriendly people.

• Social Loafing

  • The tendency for individuals in a group to exert less effort when pooling efforts toward a common goal than when individually accountable.
  • Ingham et al. (1974) rope-pulling experiment: Blindfolded students pulled with only $82\%$ as much force when believing $3\text{ others}$ were pulling behind them.
  • Latané (1981) shouting/clapping experiment: Blindfolded subjects produced about $\frac{1}{3}$ less noise when shouting or clapping as part of a group effort.
  • Causes: Feeling less accountable, viewing individual input as dispensable, overestimating personal contribution, and free riding on group efforts. Social loafing is particularly common among men in individualist cultures.

• Deindividuation

  • The loss of self-awareness and self-restraint occurring in group settings that foster both high arousal and anonymity.
  • Zimbardo (1970) experiment: NYU women wearing depersonalizing Ku Klux Klan-style hoods delivered $2\times$ as much shock to a victim as identifiable control women.
  • Settings fostering deindividuation: Online trolling and hate speech; tribal warriors wearing face paint or masks, who are significantly more likely to kill, torture, or mutilate captured enemies (Watson, 1973); sports riots (e.g., 2018 Philadelphia Eagles Super Bowl post-game destruction).

• Group Polarization

  • The enhancement of a group's prevailing inclinations through discussion within the group.
  • Myers & Bishop (1970): High-prejudice students discussing racial issues became more prejudiced, whereas low-prejudice students became more accepting.
  • Online social networks accelerate group polarization by creating self-reinforcing echo chambers and outrage machines that amplify political and ideological extremism.

• Groupthink

  • Coined by Irving Janis (1982): A mode of thinking that occurs when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives.
  • Fed by overconfidence, conformity, self-justification, and group polarization.
  • Historical fiascos attributed to groupthink: 1961 Bay of Pigs invasion, 1941 failure to anticipate Pearl Harbor, escalation of the Vietnam War, the Watergate cover-up, the Chernobyl nuclear disaster, the space shuttle Challenger explosion, and the 2003 Iraq War decision regarding weapons of mass destruction.
  • Prevention: Groupthink is prevented when leaders welcome diverse opinions, invite expert critique, assign devil's advocates, and encourage open debate in small, diverse teams.

• Cultural Influences and Cultural Variations

  • Culture represents enduring behaviors, ideas, attitudes, values, and traditions shared by a group and transmitted across generations.
  • Culture enables division of labor and preservation of cumulative innovations.
  • Individualism vs. Collectivism: Collectivist societies (common in Asia, Africa, and Latin America) prioritize group harmony and "we" identity; individualist societies prioritize personal independence and "me" identity.
  • Tight vs. Loose Cultures (Gelfand, 2018): Tight cultures enforce strict compliance with social norms (punctuality, minimal littering, low public affection); loose cultures tolerate wide behavioral variability (jaywalking, late arrivals).
  • Cultural change occurs rapidly over time (e.g., expanded human rights, higher real income, air conditioning alongside increased depression, inequality, work hours, and reduced sleep since 1960), occurring at speeds far too fast to reflect changes in the human gene pool.

Biological, Psychological, and Social-Cultural Drivers of Aggression

• Defining Aggression

  • Psychological definition: Any physical or verbal behavior intended to harm someone, whether done out of hostility or as a calculated means to an end.
  • Classified as antisocial behavior—actions that defy social norms or violate others' rights.
  • Firearm statistics: In 2020, $45,222\text{ Americans}$ died from gun injuries ($54\%$ were suicides). Keeping a gun in the home doubles murder risk and triples suicide risk compared to demographically matched peers.

• Biological Influences on Aggression

  • Genetic Factors: Animals bred for aggressiveness. Twin studies show higher concordance for violent temper in identical twins than fraternal twins. Genetic markers include the Y chromosome and the low-expression monoamine oxidase A ($MAOA$) gene ("warrior gene"), which fails to break down neurotransmitters like dopamine and serotonin effectively, producing heightened provocation aggression (McDermott et al., 2009).
  • Neural Factors: Neural circuits facilitate or inhibit aggression. Radio-electrode stimulation of a monkey leader's aggression-inhibiting brain region allowed a subordinate monkey to stop threats by pressing a button. Amygdala stimulation turned a mild-mannered woman aggressive (snarling and striking a doctor). Damaged, inactive, or immature frontal lobes reduce impulse control ($203\text{ convicted murderers}$ showed significantly reduced frontal lobe tissue; Sajous-Turner et al., 2020).
  • Biochemical Factors: The hormone testosterone elevates aggression in the neural system (castration subdues aggressive bulls and mice; testosterone injections restore violence). Alcohol functions as a biochemical disinhibitor, slowing brain systems that control judgment and inhibition. Alcohol is involved in $73\%$ of homicides in Russia and $57\%$ in the United States.

• Psychological and Social-Cultural Factors in Aggression

  • Aversive Events: Pain, personal insults, foul odors, cigarette smoke, crowding, and hunger ("hangry") trigger hostility.
  • Frustration-Aggression Principle: Frustration (the blocking of an attempt to achieve some goal) creates anger, which can generate aggression.
  • Hit-by-Pitch Baseball Study: Analysis of $27,667\text{ hit batters}$ ($4,566,468\text{ matchups}$ across $57,293\text{ games}$) proved pitchers hit batters significantly more often after a home run was hit or when ambient temperatures were high.
  • Global Climate Modeling: A projected $4^\circ\text{F}\text{ (about }2^\circ\text{C)}$ rise in global temperature could induce tens of thousands of additional assaults and murders (Anderson & Delisi, 2011).
  • Reinforcement and Observational Learning: Experiencing successful intimidation reinforces bullying. Parent-training programs emphasize positive reinforcement over physical hitting or screaming.
  • Culture of Honor: In the U.S. South, historical herding traditions (Scots-Irish heritage) generated a culture of honor where insults demand violent responses, producing $3\times$ higher homicide rates, more school shootings, and greater support for gun ownership compared to New England Puritan settlements.
  • Media Models and Social Scripts: Media violence provides social scripts—culturally provided mental files for how to act. Listening to woman-hating music lyrics increased male subjects' administration of hot chili sauce to female participants (Fischer & Greitemeyer, 2006).
  • Pornography Effects: Repeated pornography exposure trivializes sexual violence, alters social scripts, and leads viewers to recommend prison sentences half as long for convicted rapists compared to control groups (Zillmann & Bryant, 1984).
  • Violent Video Games: Research ($400\text{ studies}$ involving $130,000\text{ subjects}$) confirms violent video games prime aggressive thoughts, decrease empathy, desensitize viewers to cruelty, and increase physical fights ($4\,\text{in}\,10$ gamers vs. $4\,\text{in}\,100$ non-gamers). Children playing gun violence video games were significantly more likely to pick up and pull the trigger on real handguns (Chang & Bushman, 2019).

The Psychology of Attraction and Romantic Relationships

• Three Main Ingredients of Interpersonal Attraction

  • Proximity: Geographic nearness is the single most powerful predictor of friendship.
  • Seeds of Peace Camp study: Israeli and Palestinian teenagers sharing a sleeping bunk were $11\times$ more likely to become friends than non-bunkmates (White et al., 2021).
  • Mere Exposure Effect: Repeated exposure to novel visual stimuli increases liking. By age $3\,\text{months}$, infants prefer faces of the race they see most often. Individuals prefer their own mirror image, whereas friends prefer their true reverse image. Morphing $10\%$ to $20\%$ of a participant's facial features into a stranger's photo increases trust and attraction (DeBruine, 2002).
  • Modern Matchmaking and Dating:
  • Online Dating: In 2017, $39\%$ of heterosexual couples and $65\%$ of same-sex couples met online. Internet-formed relationships average slightly higher longevity and satisfaction rates than offline matches.
  • Speed Dating: Participants form lasting impressions within $4\,\text{minutes}$. Individuals who fear rejection elicit rejection. Large option pools lead to superficial choices based on height and weight. Conventional circulating roles dictate choosiness (when men stay seated and women circulate, men become choosier).
  • Physical Attractiveness:
  • Welcome Week Dance study (Walster et al., 1966): Physical appearance was the sole variable predicting whether paired blind dates liked one another.
  • Attractive individuals are perceived as healthier, happier, more sensitive, more successful, and more socially skilled, though physical attractiveness is statistically unrelated to personal self-esteem or happiness.
  • Facial Symmetry and Averageness: Digitally averaged composite faces ($32\text{ student faces}$ merged) are rated as more attractive than $96\%$ of individual constituent faces (Langlois & Roggman, 1990).
  • Personality influence: Perceiving an individual as honest, polite, and humorous increases their perceived physical attractiveness.
  • Similarity:
  • Opposites retract; friends and romantic partners disproportionately share attitudes, beliefs, age, religion, race, education, and intelligence.
  • Reward Theory of Attraction: We like individuals whose behavior is rewarding to us, or whose proximity allows us to gain rewards at low personal cost.

• Romantic Love and Its Evolution

  • Passionate Love: An aroused state of intense positive absorption in another, typically present at the beginning of a romantic relationship.
  • Explained by the Two-Factor Theory of Emotion: Physical arousal + cognitive appraisal = emotion.
  • Capilano Suspension Bridge Study (Dutton & Aron, 1974): Men crossing a high, swaying footbridge ($230\,\text{feet}$ / $70\,\text{m}$ high) experienced elevated physiological arousal, misattributed that arousal to an attractive female interviewer, accepted her phone number, and called her at significantly higher rates than men crossing a low, stable bridge.
  • Companionate Love: A deep, affectionate attachment that develops as a relationship matures.
  • Hormonal shift: Early intense passion hormones (testosterone, dopamine, adrenaline) subside and are replaced by oxytocin, which fosters trust, calm, and attachment.
  • Three Keys to Enduring Companionate Love:
  1. Equity: Both partners receive in proportion to what they give. Sharing household chores ranks third in U.S. surveys for successful marriage factors.
  2. Self-Disclosure: Revealing intimate aspects of oneself (likes, dislikes, dreams, worries, shame). Aron et al. (1997) demonstrated that $45\,\text{minutes}$ of escalating, self-disclosing conversation generated deep feelings of closeness.
  3. Positive Support: Maintaining a ratio of at least $5:1$ positive interactions (compliments, touches, laughter) to negative interactions (sarcasm, insults, criticism) predicts long-term relationship happiness (Gottman, 2007).

Altruism, Social Conflict, and Peacemaking

• Altruism and Bystander Intervention

  • Altruism is the unselfish regard for the welfare of others.
  • Historical examples: Maria Blyshchik hiding Fania Rosenfeld Bass for $2\,\text{years}$ during the Holocaust; Sharon Bass hosting Ukrainian refugees Lesia Orshoko and Alona Chugai in 2022; international citizens booking $430,000+\text{ nights}$ in Ukrainian Airbnbs in March 2022 to send $\$400\times 10^6$ in direct aid.
  • Kitty Genovese Murder (1964): Stalked, stabbed, and raped outside her Queens, NY apartment at $3:30\,\text{a.m.}$ while inaction from surrounding neighbors sparked social psychological investigations into bystander behavior.
  • Darley and Latané Bystander Decision Model: A decision scheme showing that a bystander will help only if they sequentially $1.\text{ Notice the incident}$ $\rightarrow$ $2.\text{ Interpret it as an emergency}$ $\rightarrow$ $3.\text{ Assume responsibility}$.
  • Bystander Effect and Diffusion of Responsibility: The presence of other witnesses dilutes personal responsibility, making any single individual less likely to help.
  • Intercom Fake Seizure Study: Participants believing they alone heard the victim usually helped; participants believing $4\text{ others}$ heard the victim responded less than $\frac{1}{3}$ of the time.
  • Elevator Dropped Pencil/Coin Study ($1497\text{ rides}$, $4813\text{ passengers}$): $40\%$ helped when alone, compared to $20\%$ when $5\text{ other bystanders}$ were present.
  • Conditions Maximizing Bystander Helping: The victim appears to need and deserve help; the victim is similar to us; the victim is a woman; we observed someone else helping; we are not in a hurry; we are in a small town or rural area; we feel guilty; we are focused on others; we are in a good mood ("happy people are helpful people").
  • Experiments confirm that randomly assigning people to spend money on others yields higher personal life satisfaction than spending it on oneself (Aknin et al., 2020).

• Social Norms Explaining Helping Behavior

  • Social Exchange Theory: The theory that human interactions are transactional—aimed at maximizing internal or external rewards and minimizing costs (cost-benefit analysis or utilitarianism).
  • Reciprocity Norm: An expectation that people will help, not harm, those who have helped them (e.g., Dave Tally returning a lost backpack containing $\$3300$ cash).
  • Social-Responsibility Norm: An expectation that people will help those dependent upon them or unable to give as much as they receive (e.g., Wesley Autrey diving onto NYC subway tracks under a moving train to cover a fallen stranger). Highly religious individuals are $50\%$ more likely to donate money and volunteer time.

• Elements of Social Conflict

  • Conflict is a perceived incompatibility of actions, goals, or ideas.
  • Social Traps: Situations in which conflicting parties, by rationally pursuing their self-interest, become caught in mutually destructive behavior (e.g., hoarding toilet paper, operating gasoline cars driving global climate change).
  • Prisoner's Dilemma: A classic social trap scenario featuring two suspects (Roger and Chris):
  • Option A: Both betray each other $\rightarrow$ Both serve $5\,\text{years}$ in prison.
  • Option B: One betrays, one stays silent $\rightarrow$ Betrayer goes free, silent suspect serves $3\,\text{years}$.
  • Option C: Both stay silent $\rightarrow$ Both serve $1\,\text{year}$.
  • Mutual self-interest leads both suspects to betray each other, producing a worse outcome ($5\,\text{years}$) than mutual cooperation ($1\,\text{year}$).
  • Mirror-Image Perceptions: Mutual views held by conflicting parties, where each side sees itself as ethical and peaceful while viewing the other as evil and aggressive. Feeds self-fulfilling prophecies.
  • Reaction force experiment: Subjects instructed to match finger pressure returned $40\%$ more physical force than they had just experienced due to perceived escalation.

• Promoting Peace

  • Contact: Noncompetitive, equal-status contact between groups reduces prejudice ($250,000+\text{ subjects}$ across $38\text{ nations}$). Interracial rooming and contact with LGBTQ individuals significantly lower explicit and implicit prejudice.
  • Cooperation and Superordinate Goals:
  • Superordinate Goals: Shared goals that override differences among people and require their cooperation.
  • Muzafer Sherif (1966) Robbers Cave Experiment: Created severe hostility between $22\text{ Oklahoma City boys}$ split into two competitive summer camp groups. Sherif then introduced shared emergencies (fixing the camp water supply, pooling funds to rent a movie, pulling a stalled truck), transforming hostile enemies into close friends through cooperative effort.
  • Multiethnic cooperative learning (jigsaw classrooms) and mixed Christian-Muslim soccer teams in Iraq (Mousa, 2020) build lasting cross-group friendships.
  • Communication: Third-party mediators help parties replace a competitive win-lose orientation with a cooperative win-win resolution (e.g., resolving an orange dispute by giving all juice to one party and all peel to the other). Structured platforms include BraverAngels.org and MyCountryTalks.org.
  • Conciliation (GRIT):
  • GRIT: Graduated and Reciprocated Initiatives in Tension-Reduction, a strategy devised by Charles Osgood.
  • Mechanism: One party publicly recognizes mutual interests, announces its intent to reduce tension, and initiates small, conciliatory acts. This opens the door for reciprocity while maintaining retaliatory capacity.
  • Historical Example: U.S. President John F. Kennedy's public announcement stopping atmospheric nuclear tests initiated reciprocated Soviet conciliatory steps, culminating in the 1963 atmospheric nuclear test-ban treaty.