GENPSYCH PREFINALS

sensation

• reception stimulus, stimulation of sensory receptors & transmission of sensory info to central nervous system

• basically, acquiring info / data through the use of our senses

• ex: hearing a loud sound

perception

• sensations are selected, organized, interpreted into an inner representation of the world, enabling ppl to recognize meaningful objects / events

• how we make sense or understand the sensory information we received

• ex: knowing the loud sound was coming from your mom

types of senses

1. vision (light)

2. hearing (sound waves)

3. taste (chemicals / gustation)

4. smell (air chemicals / olfaction)

5. touch (pressure / temperature / pain)

6. kinaesthesia sense (orientation / balance)

tranduction

• process of converting energy of stimulus into a neural activity

• stimulus is recorded as a neural pattern

action potential

a neural or electrical signals

external sensation

• process of knowing a material, concrete stimuli through external senses

• you come to know things / stimuli that surrounds us

stimulus

• physical element of external sensation

• any aspect of the world influencing behavior / conscious experience

threshold stimulus / absolute stimulus

minimum amount of stimulus capable of producing sensation

receptor

• any structure in body that excitable to stimuli

• peripheral termination of sensory or affarent fibers

transmissors

bundle of nerve fibers conveying sensory messages / impulses from one neuron to the next

fiber tracts

responsible for transmitting sensory impulses to the brain

brain center

• continuous with signal cord from which emerges

• each sense modality has its own primary sensory area

types of sensation from different senses

characteristic of sound

1. frequency: vibrations of sound waves which determines pitch (highness or lowness of sound)

2. intensity: density of vibrating air molecules that determines the loudness of a sound

3. complexity: determines timbre or tonal quality

olfactory and gustatory senses