But cells also sense and respond to what's happening in their microscopic world.

But the cells do not respond to the target fragment on their own.

"They seem to have a role to play in how these cells respond to a given stimulus."

Those cells also do not respond to glucose, a capability gained after the baby is born.

The cells did not respond if one of the gratings moved in the preferred direction.

For example, one cell would only respond when a hand was moved in front of the animal's eyes.

Some complex cells respond optimally only to movement in a certain direction.

Sometimes these cells do not fully respond to the action of insulin.

For example, one cell responded to the expression of anger in two different faces.

These cells respond when stimuli indicative of a reward are present.