What's the point of evolutionary psychology? | Simon Baron-Cohen, Subrena Smith, Keith Frankish

Episode Overview

• The discussion centers on the debate between evolutionary psychology and cultural influences in shaping human behavior, specifically focusing on attachment, language, and gender differences.
• Simon Baron-Cohen presents arguments supporting an evolutionary basis for certain behaviors, citing examples like infant attachment and the universality of language development.
• Subrena Smith challenges the evolutionary psychology framework, arguing that observing a behavior universally does not automatically prove it has a specific biological or genetic mechanism.
• Keith Frankish introduces the concept of "free will" and autonomy as products of evolution, suggesting that our biology gives us the flexibility to override evolutionary pressures.
• The debate highlights the ongoing tension between "nature" and "nurture," questioning to what extent our biology predetermines our social behaviors versus the role of culture in shaping them.

Key Concepts

• Attachment as an Evolved Behavior: Simon Baron-Cohen argues that the attachment between an infant and a caregiver is an evolved behavior, pointing to its presence across various species (apes, dogs, cats) as evidence. He suggests that this system evolved to keep vulnerable infants close to protective parents.
• The Limits of Evolutionary Explanations: Subrena Smith contends that just because a behavior is widespread or universal does not mean it is driven by a specific, modular genetic selection. She emphasizes the need to understand the actual genetic basis before attributing behaviors solely to evolution.
• Language: Nature and Nurture Intertwined: The development of language is presented as a classic example of the interplay between biology and culture. While the capacity to learn language appears innate (biology), the specific language learned depends entirely on the cultural environment (nurture).
• Gender Differences in Empathy: Baron-Cohen introduces his research suggesting that women, on average, score higher on tests of empathy than men across many cultures. He speculates this might have evolutionary roots related to maternal caregiving, though he acknowledges cultural shifts (like more involved fathers) show the malleability of these roles.
• Evolution of Autonomy: Keith Frankish proposes that evolution didn't just hardwire specific behaviors; it also endowed humans with a high degree of autonomy and flexibility. This "free will" allows humans to act contrary to evolutionary imperatives, such as choosing not to reproduce.

Quotes

• At 1:06 - "It's that kind of cross-species observation that raises the question, is this an evolved form of behavior?" - Simon Baron-Cohen uses the presence of attachment behaviors across different species to argue for an evolutionary basis.
• At 4:45 - "Is that evidence that there's nothing going on that produced the behavior that is biological? No. Clearly, it doesn't say that the behavior being different across different people that it isn't a biological, it's not produced by biology." - Subrena Smith clarifies that behavioral differences don't rule out biological influences, but questions whether specific behaviors are genetically modular.
• At 12:20 - "One of evolution's strategies... is to give them a lot of autonomy so that they can be really flexible, really adaptable, they can set their own goals." - Keith Frankish explains how evolution might have selected for flexibility and autonomy rather than rigid, hardwired behaviors.

Takeaways

• Recognize the interplay between biology and culture when analyzing human behavior; avoid reductionist explanations that rely solely on one or the other.
• When evaluating claims about "evolved" behaviors, look for evidence of specific biological or genetic mechanisms, rather than accepting universality as proof of genetic hardwiring.
• Appreciate that evolutionary adaptations can include flexibility and autonomy, allowing humans to make choices that may seem contrary to biological imperatives.