Search Results for: stimulus
Unconditioned stimulus
An unconditioned stimulus inherently triggers an automatic response, not reliant on deliberate prior learning. In contrast... Read More
Subliminal stimulus
Definition noun, plural: subliminal stimuli (physiology) A stimulus inadequate to generate an action potential and thereby... Read More
Neutral stimulus
Definition noun, plural: neutral stimuli In classical conditioning, it is the type of stimulus that initially or normally... Read More
Liminal stimulus
Liminal stimulus --> threshold stimulus a stimulus of threshold strength, i.e., one just strong enough to excite. See:... Read More
Supraliminal stimulus
Definition noun, plural: supraliminal stimuli A stimulus above the threshold of sensation or of awareness Supplement In... Read More
Sensory Systems
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More
Stimulus substitution
stimulus substitution --> classical conditioning (Science: psychology) learning that takes place when a conditioned... Read More
Positive feedback
Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More
Afferent Nerve
Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More
Classical conditioning
Definition noun A form of conditioning or associative learning first demonstrated by Ivan Pavlov (a physiologist,... Read More
Feedback mechanism
Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More
Graded potential
Definition noun, plural: graded potentials A change in the electrical potential on the membrane of an excitable cell (e.g. a... Read More
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Respondent conditioning
Definition noun A form of conditioning or associative learning first demonstrated by Ivan Pavlov (a physiologist,... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Thigmotropism
Definition noun Growth or movement of a cell or an organism in response to touch Supplement In general, tropism is an... Read More
Nastic movement
Definition noun, plural: nastic movements The non-directional movement (of plants) in response to a stimulus (e.g. humidity,... Read More
Chemotropism
Definition noun Growth or movement response of a cell or an organism to chemicals Supplement In general, tropism is an... Read More
Homeostatic Mechanisms and Cellular Communication
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More
Escape conditioning
Definition noun A form of conditioning in which the subject learns to perform a behavior that terminates an aversive... Read More
Heliotropism
Definition noun Growth or movement of a cell or an organism in response to the direction of the sun Supplement In general,... Read More
Implosive therapy
Definition noun A form of behavior therapy in which it utilizes a method for extinguishing anxiety through saturation... Read More
Gravitropism
Definition noun Growth or movement response of a cell or an organism to gravity Supplement Tropism is an involuntary... Read More
Electrotropism
Definition noun Growth or movement of a cell or an organism in response to an electric field Supplement In general, tropism... Read More
Resting potential
Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... Read More
Phototropism
Definition noun, plural: photoropisms Growth or movement response of a cell or an organism to light Supplement In general,... Read More
Reflex arc
Definition noun, plural: reflex arcs A neural pathway that controls reflex reactions Supplement In physiology, a reflex... Read More
Growth and Plant Hormones
Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More
Control of Body Movement
Motor Control Hierarchy A motor program is the pattern of neural activities required to perform a movement is created and... Read More
Consciousness and Behavior
States of Consciousness Defined either by (1) behavior - ranging from attentive and alert to coma and (2) electrical... Read More
Hydrotropism
Definition noun Growth or movement response of a cell or an organism to moisture or water Supplement In general, tropism is... Read More
Irritability
Definition noun (physiology) The ability of the cell to receive and respond to a stimulus. (pathology) The excessive... Read More
Thigmonasty
Definition noun A form of nastic movement (of a plant or a fungus) as a response to touch or vibration Supplement Nastic... Read More
Human Perception – Neurology
A better understanding of human perception unlocks the key to how the mind works, an advantage when working with people with... Read More
Depolarization
Depolarization is the removal of polarity by a process or action. It might also be used to describe how such activity leads... Read More