Sensory Processing Flashcards
This is the least amount of physical energy that can be perceived as being DIFFERENT from a standard. (50% of time)
Differential Threshold
This is the least amount of physical energy that can be perceived (50% of time).
Absolute Threshold
This is the MAXIMUM energy sensed.
Terminal Threshold
This is the RELATIONSHIP between PHYSICAL ENERGY and EXPERIENCE.
Psychophysics
This is when the experimenter presents RANDOMLY VARYING intensities of stimulus.
Constant Stimulus
This is when the SUBJECT varies the intensity of a stimulus.
Method of adjustment
The experimenter starts well above the threshold then gradually decreases intensity in a series of steps, the starts well below threshold and gradually increases in steps
Method of Limits
This is the immediate impression that senses make on the brain, process of detecting presence of stimuli.
Sensation
This is the higher order process of integrating, recognizing and interpreting complex patterns of sensation.
Perception
This is utilized with the differential threshold and states that if ORIGINAL intensity is LOW, not much must be added to detect a difference but if it is HIGH, then a GREAT DEAL must be added.
Webber’s Law
Holds for original and med but breaks down at hight original intensity.
This process is the CONVERSION of PHYSICAL ENERGY into NERVE IMPULSES.
Transduction
Where does TRANSDUCTION occur?
Sensory Synapse
True or False: JOHANNES MÜLLER noted that GROSS SENSORY QUALITY depends on how it is stimulated.
FALSE, gross sensory quality DEPENDS ON WHICH NERVE IS STIMULATED.
This type of STIMULUS is the one to which the receptor RECEPTOR SYSTEM is most SENSITIVE and requires the LEAST amount of energy.
Adequate Stimulus
This type of STIMULUS is one to which the ORGANISM will RESPOND but REQUIRES a GREAT AMOUNT of ENERGY.
Inadequate Stimulus
Give an example of an ADEQUATE STIMULUS for the eye and vision.
Light
Give an example of an INADEQUATE STIMULUS for the eye and vision.
Pressure, electric shock, mechanical irritation.
This is a process in which SENSORY RECEPTORS generate SPECIFIC PATTERN.
Coding
These SENSORY RECEPTORS are FREE NERVE ENDINGS that subserve PAIN, WARMTH, COLD, DIFFUSE LIGHT TOUCH.
Unspecialized Neurons
These SENSORY RECEPTORS subserve in VISION and OLFACTION.
Specialized Neurons
These SENSORY NEURONS subserve AUDITION, BALANCE, TASTE, SPECIFIC LIGHT TOUCH, PRESSURE and KINESTHESIS.
Specialized Epithelial Cell-Neuron Combinations
This is a DECREASE IN RESPONSE of RECEPTOR and DECREASE IN PERCEIVED INTENSITY of a stimulus resulting from a CONSTANT RATE of STIMULATION.
Adaption
True or False: ADAPTION is caused by RECEPTOR FATIGUE.
TRUE
This is a LOSS OF ATTENTION to a stimulus caused by repetition or LACK OF NOVELTY.
Habituation
Habituation is sometimes referred to as _______________.
Sensory Gating
This occurs when RECEPTORS CONTINUE TO RESPOND after a stimulus stops acting upon them.
After Images
These AFTER IMAGES result from BRIEF, INTENSE STIMULATION.
Positive After Images
These AFTER IMAGES result from PROLONGED stimulation.
Negative After Images
