fright reaction

Many ostariophysans have a fright reaction in response to an alarm substance.

Aspredinids have a loss of alarm cells and the fright reaction that is present in other ostariophysans.

Many ostariophysians have the characteristic of an alarm substance that is part of a fright reaction.

Sparks et al. (1993) further suggested that subjects experiencing high arousal might be more susceptible to fright reactions than those who experience low arousal (p. 467).

He had not seen her since forcing the gerontological treatment on her in Tempe, and he was acutely uncomfortable; possibly this was a fright reaction.

When the fish is injured, this pheromone is released; other fish of the same species or similar species can smell this pheromone, causing a fright reaction.

However, some fish possess the alarm substance without the fright reaction or lack both the alarm substance and the fright reaction to the alarm substance.