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Adding variability increased the frequency of the pigeons…

“Adding variability increased the frequency of the pigeons completing the intended action. Skinner’s pigeons tell us a great deal about what helps drive our own behaviors. More recent experiments reveal that variability increases activity in the nucleus accumbens and spikes levels of the…” quote by Nir Eyal
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““Adding variability increased the frequency of the pigeons completing the intended action. Skinner’s pigeons tell us a great deal about what helps drive our own behaviors. More recent experiments reveal that variability increases activity in the nucleus accumbens and spikes levels of the neurotransmitter dopamine, driving our hungry search for rewards.[lxxiv] Researchers observed increased dopamine levels in the nucleus accumbens in experiments involving monetary rewards as well as in a study of heterosexual men viewing images of attractive women’s faces.[lxxv] Variable rewards can be found in all sorts of products and experiences that hold our attention. They fuel our drive to check email, browse the web, or bargain-shop. I propose that variable rewards come in three types: Tribe, hunt and self (figure 20). Habit-forming products utilize one or more of these variable reward types.””

Nir Eyal

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Variable rewards stimulate dopamine, increasing engagement and motivating repeated actions across contexts.

In simple terms: Variable rewards boost dopamine, driving repeated behavior.

Key Takeaway

Design experiences with unpredictable rewards to sustain interest.

Themes

behavioral design motivation habit formation neuroscience marketing

Mood

engaging cautionary analytical

Type

advice psychological marketing

When to use this quote

  • product design
  • digital platforms
  • advertising
  • personal habit building

Key Concepts

dopamine pathways reinforcement schedules habit loops

Questions to Reflect On

  • How might unpredictable rewards affect long‑term wellbeing?
  • When is it ethical to use variable rewards?
A Different Perspective

Variable rewards can lead to addiction or loss of self‑control.

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