Hidden Brain

25 Sept 2023 · 50 min

0:00

In this Hidden Brain episode, host Shankar Vedantam interviews Carnegie Mellon psychologist Anita Williams Woolley about the science of teamwork. Woolley recounts early personal experiences—waitressing in a small Maine restaurant and a challenging ROTC training exercise—to illustrate how dysfunctional dynamics can arise when individuals dominate or ignore others. She describes her academic journey, including a pivotal class with team‑researcher Richard Hackman, which challenged the intuition that assembling brilliant individuals automatically yields a great team. The conversation then surveys historical team failures such as the Bay of Pigs invasion, the Challenger disaster, and the 9/11 intelligence breakdown, using them as case studies of collective blind spots. Woolley explains her research program that treats teams as having a form of "collective intelligence" analogous to an IQ test for groups. Large‑scale lab experiments showed that individual IQ, personality traits, and even team cohesion have little predictive power for a team’s collective intelligence. Instead, three robust predictors emerged: (1) a higher proportion of women, especially gender‑diverse teams with a female majority, (2) social perceptiveness—members’ ability to read subtle cues and anticipate others’ needs, and (3) balanced participation, where no single member dominates the conversation. Additional findings include the detrimental impact of video‑only conferencing on synchrony and equality of contribution, the outsized negative effect of the lowest‑scoring social‑perceptive member (the "bad apple"), and the importance of transactive memory systems that let teams know who knows what. Stability in team membership fosters these systems, whereas frequent turnover disrupts them. Woolley emphasizes that teams function like a single brain: effective performance arises from coordinated, adaptive interactions rather than the sum of individual parts. The episode concludes with practical take‑aways for building high‑performing teams and a brief anecdote about a high‑school soccer story illustrating the power of respectful competition and future collaboration.

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