stimuli

Mossy fiber synapses are characterized by their high plasticity, meaning they can change their activity, structure, and connections based on stimuli.

Earlier work led by Gunawardena found that a single-cell ciliate showed avoidance behavior, not unlike the actions observed in animals that encounter unpleasant stimuli.

The researchers also observed that fampridine increased brain excitability in all participants, thus enabling faster processing of stimuli.

A little more than half of their definitions referred to emotions as a response to either internal or external stimuli.

The microscopic algae have an extremely fast response to stimuli — such as breaking waves — and produce their glow 15 milliseconds after stimulation, researchers say.