小学生感知觉的发展（The development of pupils sensory perception）.docVIP

小学生感知觉的发展（The development of pupils sensory perception） The first sense (sensation) First, the concept of perception The human brain reflects the individual properties of the objective things that act directly on the sensory organs. Feeling is the simplest and most basic psychological phenomenon. Two, the meaning of feeling 1., the sense of access to information inside and outside the environment 2., feeling to ensure the survival of the body and the realization of normal psychological function Sensory deprivation and information overload The 3. sense is the basis of higher mental activity Experimental device for sensory deprivation Three, sense coding - transduction Stimulate energy (physical and chemical energy) - neural electrical energy (impulse) Four. Sensory classification and its characteristics (I) external feeling 1. vision 80% (1) producing mechanism Visible light - photoreceptor cell - visual area (2) visual phenomena Lightness Visual acuity Color vision Afterimage and flicker 2. hearing 10% (1) producing mechanism Audible sound - inner ear hair cells - auditory area (2) auditory phenomenon; Pitch, sound (music and noise), tone (pure tone and noise), masking of sound 3. sense of smell 4. taste 5. skin tactile sensation, pain, temperature (two) internal feelings 1. sense of movement: the position, movement, and tightness of the muscles of the body 2. the sensation of a body in a straight or rotational motion that slows or accelerates. 3. body sensation: visceral sensation, hunger and thirst, fullness, pain, defecation, etc. Five, the law of perception (1) the relation between stimulus intensity and sensation size 1. sensitivity and sensory threshold: The sensory capacity of the sense organs is called receptivity; The magnitude of the amount of stimulation applied to the sensory organs is called the sensory threshold (threshold) 2. absolute sensibility and absolute sensation threshold: the minimum amount of stimulation that can cause sensation, called absol