Psychology & Psychiatry

Study finds 'frozen' fear response may underlie PTSD

Learned fear responses enable animals—including humans—to flee or freeze in the face of a perceived threat. But if these behaviors persist after the danger lifts, they can become paralyzing and disabling. That's a key ...

Immunology

Disease-fighting antibody production

The influence of environmental cues on the differentiation and function of B cells—white blood cells that produce antibodies as part of humoral immunity—is incompletely understood.

Neuroscience

Brain circuit enables split-second decisions when cues conflict

When animals hunt or forage for food, they must constantly weigh whether the chance of a meal is worth the risk of being spotted by a predator. The same conflict between cost and benefit is at the heart of many of the decisions ...

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