The Jordan Harbinger Show

1293: Abigail Marsh | How Fear Separates Saints from Psychopaths Part 2

March 5, 2026

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  • Neuroscience is currently far from reliably diagnosing psychological disorders like psychopathy via brain scans because fMRI only measures blood flow, missing crucial neurotransmitter activity. 
  • Psychopathy is treatable, contrary to popular pessimism, as evidenced by the success of treating other personality disorders like Borderline Personality Disorder, and individuals with psychopathic traits often realize their behavior is detrimental and seek change later in life. 
  • Altruists, contrary to stereotypes, are highly sensitive to fear and show a stronger brain response (amygdala activity) to the fear experienced by others, whereas psychopaths show a low response to others' fear, suggesting fear processing is a key differentiator between the two groups. 
  • Altruism often begins small, is reinforced by the rewarding feeling of helping others, and can lead to significant positive actions over time. 
  • Social media algorithms amplify negative behavior, leading users to draw false conclusions that people are much worse than they are, which can decrease altruism due to increased cynicism. 
  • The brain's negativity bias, designed for survival by prioritizing threats, causes us to remember bad behavior as more common than it actually is, leading to inaccurate assessments of general human nature. 

Segments

Predicting Traits via Neuroscience
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(00:02:55)
  • Key Takeaway: fMRI technology is insufficient for individual psychological diagnosis due to its reliance on blood flow rather than direct neuronal or neurotransmitter measurement.
  • Summary: Neuroscience cannot yet predict altruistic or psychopathic tendencies reliably using brain scans because fMRI only measures blood flow changes, missing activity in specific neurotransmitter systems like dopamine or serotonin. This limitation means brain scans are far from being a diagnostic tool for individual psychological disorders. The expense and indirect nature of the measurement mean it cannot currently serve as a definitive predictor.
Ethics of Predictive Diagnosis
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(00:04:04)
  • Key Takeaway: The ethical risk of predictive diagnosis is mitigated by the fact that psychopathic traits, like other personality disorders, are not immutable and can be treated or improved.
  • Summary: Predicting psychopathy in children raises ‘Minority Report’-style ethical concerns regarding labeling based on potential future behavior. However, this risk is countered by evidence showing that psychopathy and other personality disorders are treatable, meaning these traits are not fixed. People with psychopathy often realize their behavior is self-destructive and desire change, especially later in life, supporting the potential for successful intervention.
Psychopath vs. Psychotic Distinction
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(00:12:56)
  • Key Takeaway: Psychopathy relates to a lack of care for others, aggression, and remorselessness, while psychosis involves a disconnect between reality, hallucination, and delusion.
  • Summary: Psychopathy describes a personality trait concerning disregard for others, whereas psychosis involves an inability to distinguish reality from delusion, such as believing one is being watched by aliens. Individuals experiencing psychosis often have widespread wiring problems preventing them from performing necessary reality checks on their tangential thoughts. This contrasts sharply with psychopaths, who generally understand reality but lack emotional connection to others’ welfare.
Psychopath vs. Sociopath Terminology
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(00:21:14)
  • Key Takeaway: Psychopath is the accepted scientific term in research, while sociopath is largely relegated to fictional use and lacks a consistent, accepted clinical meaning.
  • Summary: The term ‘psychopath’ is the accepted scientific standard supported by established research scales and measures, unlike ‘sociopath.’ While ‘sociopath’ was historically linked to Antisocial Personality Disorder (ASPD) in the DSM, it is now used inconsistently by the public and media. Retiring the term ‘sociopath’ would be beneficial because it is currently used to mean too many different, often incorrect, things.
Measuring National Altruism
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(00:22:47)
  • Key Takeaway: National altruism is measured objectively through actions toward strangers, such as charitable giving, volunteering, and blood/organ donation, where the US ranks highly.
  • Summary: The US ranks as one of the most altruistic countries based on measurable behaviors directed toward strangers, including monetary donations and volunteering. High levels of altruism correlate strongly with high levels of general well-being, as helping others reinforces positive feelings about one’s own life. Immigrant observations often confirm high levels of generosity in the US compared to other nations, especially when considering acts of hospitality among lower-income populations.
Fear as a Social Behavior Link
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(00:26:49)
  • Key Takeaway: Altruists are highly sensitive to fear, showing strong empathic responses to others’ distress, while psychopaths exhibit a low fear response, making them less motivated to help.
  • Summary: Fear is a socially positive emotion that triggers empathic responses and the desire for help from others. Psychopaths lack this strong fear experience, leading to a diminished ability to recognize or simulate the fear felt by others, thus reducing their motivation for genuine compassion. Conversely, altruists show heightened brain activity in response to others’ fear, indicating they are more attuned to this specific emotional signal.
Cultivating Altruism Through Behavior
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(00:48:17)
  • Key Takeaway: The most effective way to become more altruistic is to change behavior first, as the positive rewards derived from helping others subsequently reinforce the feeling of being good.
  • Summary: Changing behavior precedes and often drives changes in internal feelings, a principle used in treating phobias. To increase altruism, one should consistently engage in helping behaviors tailored to their personality, such as volunteering in a preferred setting. As individuals experience the rewarding feelings associated with helping, this positive reinforcement motivates them to escalate their altruistic actions over time.
Altruism Motivation and Rewards
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(00:49:05)
  • Key Takeaway: The rewards of helping people initiate a positive feedback loop that motivates further altruistic behavior, starting small and potentially escalating.
  • Summary: The best way to start helping others depends on personality, such as introverts preferring non-interactive tasks over soup kitchens. Once helping becomes rewarding, it motivates individuals to repeat the action. This process can lead altruistic people to escalate their commitment over time, even to donating a kidney.
Social Media and Jerk Behavior
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(00:50:13)
  • Key Takeaway: Individuals who behave negatively on social media are generally the same people who are jerks in real life, using anonymity to avoid real-world consequences.
  • Summary: Evidence suggests that online jerks are also real-life jerks, but social media allows them freedom from immediate retaliation or punishment. The algorithms disproportionately amplify negative behavior, making users overestimate how common jerk behavior truly is. This resulting cynicism is detrimental to altruism.
Troll Psychology and Kindness
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(00:51:33)
  • Key Takeaway: Negative online commenters often fit the profile of unemployed men with no purpose, and responding with empathy rather than snark can profoundly change their outlook.
  • Summary: Research indicates many negative online commenters are unemployed men with free time, often experiencing personal pain like loneliness or physical discomfort. Responding to trolls with kindness, recognizing their underlying hurt, can lead to genuine change and heartfelt apologies, demonstrating the ripple effect of unexpected niceness.
Negativity Bias and Trust
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(00:54:22)
  • Key Takeaway: The brain’s survival-oriented negativity bias causes it to remember rare bad events with high fidelity, leading to false conclusions that the world is fundamentally selfish or dangerous.
  • Summary: The brain prioritizes avoiding danger, leading it to encode negative events more accurately and remember them better, even misremembering them as worse than reality. Bad behavior is rare, but its rarity makes it highly salient and memorable, skewing our perception of societal norms. Living in a perpetual defensive crouch due to this bias means missing out on positive experiences.
Low Trust Societies
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(00:55:47)
  • Key Takeaway: Growing up in low-trust societies, often due to historical state surveillance, instills a deep cultural suspicion where unsolicited kindness is interpreted as predatory or manipulative.
  • Summary: People from low-trust societies, like those influenced by historical secret police, are wary of gifts or sharing personal problems because information is historically used against them. The US historically has been a high-trust society, which correlates with higher altruism, but this trust level has been declining.
Media Coverage Skew
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(00:57:36)
  • Key Takeaway: Media coverage exhibits a 17-to-1 ratio favoring negative events over positive ones because journalists perceive reporting positive stories as fluffy and unserious.
  • Summary: Journalists often believe that reporting on terrible problems earns more respect from peers than covering positive developments. This over-coverage of negative events, amplified by the need for clicks, leads consumers of news media to experience worse mental health. The Washington Post’s ‘The Optimists’ section is cited as a positive antidote.
Effective Altruism Movement
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(00:59:05)
  • Key Takeaway: Effective altruism advocates donating money where it creates the maximum quantifiable good, though its modern manifestation sometimes prioritizes maximizing wealth for future donations over immediate, personal acts of kindness.
  • Summary: The original goal of effective altruism is optimizing donations for the biggest impact, such as curing diseases in developing nations rather than funding guide dogs in the US. The current iteration sometimes encourages earning billions to donate effectively, potentially focusing on preventing distant future disasters. Any logical or personal form of helping others is still considered valuable.
Fear, Wiring, and Heroism
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(01:03:14)
  • Key Takeaway: Fear processing differentiates psychopaths (who don’t process it normally) from extreme altruists (who detect it intensely), suggesting human wiring tilts toward harm or heroism based on environment and security.
  • Summary: Psychopaths fail to process their own fear or the fear of others normally, while extreme altruists detect fear faster and respond intensely. Humans are fundamentally wired for survival, and this wiring, expressed through biology and environment, determines whether actions lean toward harm or heroism. Most people exist in the middle, capable of both.