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Vision is the perception of light. Insects perceive light through three classes …


Biology Articles » Zoology » Entomology » Sense Organs in Insects

Background
- Sense Organs in Insects

By Sachin Chorge

Article submitted on January 2008
Article accepted on February 2008

 

Senses are the physiological methods of perception. The senses and their operation, classification, and theory are overlapping topics studied by a variety of fields, most notably neuroscience, cognitive psychology (or cognitive science), and philosophy of perception.Behaviour is determined, Or at least influenced at every step, by the stimuli to which the sense organs are subjected; and the function of the sense organs and their powers of discrimination are discovered largely by observations on behaviour. It is not possible therefore to separate these two objects completely.  

Definition of "sense"

There is no firm agreement among neurologists as to exactly how many senses there are, because of differing definitions of a sense. In general, one can say that a "sense" is a faculty by which outside stimuli are perceived. School children are routinely taught that there are five senses (sight, hearing, touch, smell, taste; a classification first devised by Aristotle).

Category

Function

Examples

Mechanoreceptors

Detect movements, vibrations, or other mechanical disturbances Tactile receptors,
Proprioceptors,
Sound receptors.

Chemoreceptor

Detect the presence of chemical substances in the air (smell) or on substrates (taste) Taste buds on palps, Antennal, sensilla.

Photoreceptors

Detect the presence and quality of incident light (electromagnetic radiation) Compound eyes, Ocelli
 PHOTORECEPTORS:

Compound eye

Simple Eye

Dermal light sense

Ommatidia

Stemmata, Ocelli

Dermal Receptors


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