[1] The nervous system has developed the capability to perceive and distinguish between minute differences in stimuli, which allows the animal to only react to significant impetus.
The cocktail party effect refers to the situation where people in a crowded room tend to ignore other conversations and just focus on the one they are participating in.
Intense sound pressure waves sweep over the moth's body causing the tympanum to vibrate and deforming these receptor cells.
These receptors work in the same ways that most neurons do, by responding to the energy contained in selected stimuli and changing the permeability of their cell membranes to positively charged ions.
The A2 receptor is the emergency back-up system by initiating erratic flight movements as a last-ditch effort to evade capture.
Female flies of the genus Ormia ochracea possess organs in their bodies that can detect frequencies of cricket sounds from meters away.
This process is important for the survival of their species because females will lay their first instar larvae into the body of the cricket, where they will feed and molt for approximately seven days.
[5] After sound hits the membranes at different amplitudes, the presternum sets up symmetrical vibration modes through bending and rocking.
The difference in the number of afferents above the threshold on a side of the animal is called population code and can be used to account for sound localization.
[3] However, the female auditory system changes seasonally to acoustical stimuli in the songs of male midshipman fish.
In the summer when female midshipman fish are reproducing they listen to a male humming song that can be produce a frequency level of 400 Hz.