Physiology is concerned with all those phenomena of life that present them selves to us in sense perception as bodily processes, and accordingly form part of that total environment which we name the external world. Wilhelm Wundt
Psychology is still trying to explain the perception of the position of an object in space, along with its shape, size, and so on, and to understand the sensations of color. James J. Gibson
Sense data are much more controversial than qualia, because they are associated with a controversial theory of perception - that one perceives the world by perceiving one's sense-data, or something like that. David Chalmers
Some illusions are based on general assumptions the brain makes during perception. These assumptions are made using organizational principles, like Gestalt, an individual's ability of depth perception and motion perception, and perceptual constancy.
Some would suggest that there has been a dramatic change in our perception of the world and ourselves within the world. Others have observed that there has been an almost complete about-face in a relatively short span of time. Alex Campbell
That the Op-Ed page is very important in readers' and the nation's perception of the Times, the perception of its editorial positions, and of its implicit editorial positions as expressed by the publisher's choice of people who are given the freedom to write opinion columns. Daniel Okrent
The advanced levels which the democratic world has attained at the end of lengthy processes may have created the perception in the region that democracy is a distant concept; this perception can be addressed. Recep Tayyip Erdogan
The essential attribute of a new sense is, not the perception of external objects or influences which ordinarily do not act upon the senses, but that external causes should excite in it a new and peculiar kind of sensation different from all the sensations of our five senses. Johannes P. Muller
The human mind is capable of excitement without the application of gross and violent stimulants; and he must have a very faint perception of its beauty and dignity who does not know this. William Wordsworth
The musician - if he be a good one - finds his own perception prompted by the poet's perception, and he translates the expression of that perception from the terms of poetry into the terms of music. John Drinkwater
