(I) Sensation and perception are the beginning of cognitive activities and the source of experience.
Sense and perception are the primary stages of all cognitive processes. People’s understanding of objective things starts with feelings, and it is the simplest form of cognition. For example, when a pineapple acts on our sensory organs, our feelings can reflect its color through vision; its sweet and sour taste can reflect its sweet and sour taste; its fragrance can reflect its fragrance; its roughness and bulge can be reflected through touch.
Human beings recognize various attributes of things through their various feelings about objective things. Without feeling and perception, there will be no complex psychological processes such as appearance, memory and thinking, and it will not form a complex personality.
" Sensation Deprivation Experiment " proves that if a person's normal feeling is deprived, his perceptual ability, attention ability, thinking ability, etc. will be seriously affected.
(II) Sensation and perception are the basis of all human activities.
Although feeling and perception are relatively simple psychological processes, they are of great significance in our life practice.
With feelings, we can distinguish the attributes of various things in the outside world, so we can distinguish colors, sounds, softness, thickness, weight, temperature, taste, smell, etc.; with feelings, we can understand the position, movement, posture, hunger, and heartbeat of each part of our body; with feelings, we can carry out other complex cognitive processes.
If you lose your feelings, you cannot distinguish the attributes of objective things and their own state. If there are problems with sensation and perception, it will seriously affect people's normal life, such as sensory allergies, sensory depression and spatial perception disorders.
Sensory allergies are increased sensitivity to the general intensity of the outside world, such as feeling particularly dazzling sunlight, particularly harsh sound, and feeling unbearable pain when touching the skin. It is more common in neurosis, menopausal syndrome, etc.
Sensory loss is a decrease in sensitivity to all external stimuli, an increase in sensory threshold, and patients feel slightly or completely unable to perceive strong stimuli (the latter is called sensory loss), which is more common in depression, stupor state and consciousness disorders.
Spatial perceptual disorders feel that the distance between things around them has changed, such as the car has entered the platform while waiting for the car, while the patient still feels that the car is far away from him.
These phenomena show that if you lose your normal perception, people's lives will not be able to proceed normally.
Perceptual deprivation experiment
0 A "sensory deprivation" experiment first created by American psychologist Heibo and others to understand what changes will happen to people when they feel absent.
They led the tester into a small room. According to the prior agreement, the subjects need to lie on the bed for as long as possible, only to eat and go to the toilet, and are wearing translucent goggles, thick cotton gloves, and earplugs, which means they cannot see, hear or touch anything.
In Heibo's experiment, the subjects were asked to do simple arithmetic, word puzzle games and word grouping tests after being isolated for 12, 24, and 48 hours. The results showed that the longer the subjects were isolated, the worse the test scores were. Some subjects found it difficult to concentrate, were prone to excitement, were allergic to stimulation, nervousness, emotional instability, slow thinking, and some even had illusions and hallucinations.
instruments show that their brain wave has significantly slowed down compared to before isolation. Some people will also be unable to bear it because the quarantine is too long and then ask to withdraw from the experiment.
