Sensory Receptors Quotes

All knowledge or form conception is evoked through the medium of the eye, either in response to disturbances directly received on the retina or to their fainter secondary effects and reverberations. Other sense organs can only call forth feelings which have no reality of existence and of which no conception can be formed.

Sensation is not the conduction of a quality or state of external bodies to consciousness, but the conduction of a quality or state of our nerves to consciousness, excited by an external cause.

Smell was our first sense. It is even possible that being able to smell was the stimulus that took a primitive fish and turned a small lump of olfactory tissue on its nerve cord into a brain. We think because we smelled.

Our talk of external things, our very notion of things, is just a conceptual apparatus that helps us to foresee and control the triggerings of our sensory receptors in the light of previous triggering of our sensory receptors.

A sense is what has the power of receiving into itself the sensible forms of things without the matter, in the way in which a piece of wax takes on the impress of a signet-ring without the iron or gold.

You always have to stimulate the senses.

Although it's the hub of the nervous system and the ultimate terminus of every nerve, the brain itself lacks enervation and therefore cannot feel pain.

Our senses have changed, even though our emotions have not.

I have found that, in the composition of the human body as compared with the bodies of animals, the organs of sense are duller and coarser. Thus, it is composed of less ingenious instruments, and of spaces less capacious for receiving the faculties of sense.

We know what molecules are needed to sense light - what turns that signal that detects light into an electrical signal. We know how smells are detected. But we have a vast number of senses for which we know what the signal is, but we don't know what the receiver is.

The sensory acts are accordingly distinguished by their objects.

The senses are the organs by which man places himself in connexion with exterior objects.

The sense organs experience the external light, sound, etc. with difficulty; the different sense organs only have a so-called specific receptivity for particular stimuli.

As you eat more healthily, your palate changes - it's amazing. Your taste buds constantly adapt: from minute to minute, in fact. If you drank orange juice right now, it would taste sweet. But if you first ate some sweets then drank the same juice, it could taste unpleasantly bitter.