Stories of Women in Neuroscience · Stories of WiN

Dr. Ann Kennedy

·1 hr 15 min·5 clips

VMHDM activity stayed on for nearly a minute after a 10-second threat cue, then vanished when the circuit was silenced.

Start with programming, not the brain. Dr. Kennedy traces her curiosity to a mother who worked as a software engineer, coding operating systems for some of the first ATMs, and wanted her children learning code early. That early logic stuck. Code gave her a way to think about tasks, programs, robotics, and animal behavior before neuroscience had fully entered the picture. The host does a nice thing here, asking how those interests became a neuroscience path instead of treating the career arc as automatic. Then the research tightens. Dr. Kennedy talks through vmhdm neurons, aversive cues, and a threatening ultrasonic sweep in the 20 kilohertz range. The details get technical, but the hook is simple enough: the cells activate, the active ensemble changes over time, and the region keeps going. That persistence is the problem she cannot quite leave alone. A stimulus that lasts only seconds leaves activity running much longer, which feels different from classic working-memory delays of one or three seconds. The host stops to make sure the distinction lands. With rat exposure, lingering odor could still be muddying the picture. With sound, the cue is gone when the sweep stops, so the finding is harder to wave away. The open field experiment, with a mouse exploring while a rat is briefly introduced and removed, pulls the neural question back into behavior you can picture. The episode is very much about process. Near the end, experiments give way to the conditions that make science livable: mental health, outdoor time, and being back in California. Dr. Kennedy is candid about lab life. Hiking, sunshine, countryside weekends, and department walks sit beside the research because a working brain matters too. The interview closes warmly, with the guest thanking the host for listening and letting her talk.

As heard by us

A coder's path into neuroscience, with persistent neuronal activity tied to threat cues.

Dr. Kennedy's path begins with code rather than neurons, which gives the episode a grounded feel from the start. It moves through early programming, robotics curiosity, and the contrast between animals and machines into neuroscience, then into a lab life shaped by questions…

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A coder's path into neuroscience, with a lab story about neurons that stay active.

Read the full recommendation in PlayNext →

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