Perception is the subjective representation of the physical (external) environment. Psychophysics is the branch of psychology that is interested by perception. It's main interest is to determine how the mind's representation of the environment fits (or not) reality.
A textbook example of early psychophysics is the fact that we can easily discriminate a difference of 0,5 kg when comparing weights of 2 and 2.5 kg, but we find it rather difficult to discriminate the same difference (0,5 kg) when both wights are much higher (20 and 20,5 kg)... Therefore, minimal perceivable difference depends on the stimuli to be compared.
2007-08-17 03:19:06
·
answer #1
·
answered by Charles VQ 2
·
0⤊
0⤋
Conscious understanding of something. That which is detected by the five senses; not necessarily understood (imagine looking through fog, trying to understand if you see a small dog or a cat); also that which is detected within consciousness as a thought, intuition, deduction, etc.
http://en.wiktionary.org/wiki/Perception
In psychology and the cognitive sciences, perception is the process of acquiring, interpreting, selecting, and organizing sensory information. The word perception comes from the Latin perception-, percepio, , meaning "receiving, collecting, action of taking possession, apprehension with the mind or senses." --OED.com. Methods of studying perception range from essentially biological or physiological approaches, through psychological approaches through the philosophy of mind and in empiricist epistemology, such as that of David Hume, John Locke, George Berkeley, or as in Merleau Ponty's affirmation of perception as the basis of all science and knowledge.
http://en.wikipedia.org/wiki/Perception
perception, in psychology, mental organization and interpretation of sensory information. The Gestalt psychologists studied extensively the ways in which people organize and select from the vast array of stimuli that are presented to them, concentrating particularly on visual stimuli. Perception is influenced by a variety of factors, including the intensity and physical dimensions of the stimulus; such activities of the sense organs as effects of preceding stimulation; the subject's past experience; attention factors such as readiness to respond to a stimulus; and motivation and emotional state of the subject.
Many cognitive psychologists hold that, as we move about in the world, we create a model of how the world works. That is, we sense the objective world, but our sensations map to percepts, and these percepts are provisional, in the same sense that scientific hypotheses are provisional (cf. in the scientific method). As we acquire new information, our percepts shift, thus solidifying the idea that perception is a matter of belief.
Types of perception:
# Amodal perception
# Color perception
# Depth perception
# Form perception
# Haptic perception
# Speech perception
http://www.reference.com/search?q=perception
2007-08-17 03:39:45
·
answer #2
·
answered by d_r_siva 7
·
0⤊
0⤋