Tactual perception is achieved through the response of mechanoreceptors in the skin that detect physical stimuli.

Fish and some aquatic amphibians detect hydrodynamic stimuli via a lateral line.

Plants have a variety of means to detect such stimuli and a variety of reaction responses or behaviors.

Systems that detect hydrodynamic stimuli are also used for sensing other stimuli.

For seals, one proposal is that they might sense changes in the baseline frequency of vibration to detect hydrodynamic stimuli produced by another source.

Expert meditators, he said, are better than other people at detecting such fast-changing stimuli, like emotional facial expressions.

The anterior attentional system is involved in detecting salient stimuli and preparing motor responses.

Sexual behavior is also affected by the inability to detect sexual stimuli, incorrect labeling, or misattribution.

The bill is soft, flexible and covered with sensory receptors that can detect electrical and tactile stimuli.

Cells also specialize in detecting specific stimuli in that space, like edges, color, horizontal lines and contrast.