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How can the nervous system represent increases in the intensity of a stimulus?
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What is sensation in psychology?
Sensation is defined as the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.
Is the intensity of the stimulus is indicated by what action potential?
It is not universal, but the general rule is that stimulus intensity in the nervous system is frequency encoded, e.g. more rapid firing with temperature or with pressure. Some action potentials, as in the heart (excitable but not nervous tissue) have a broadening of the plateau due to calcium entry. In this case the change in the shape of the spike is as important as the change in frequency. Usually this question is directed at the retinal cells which have a generator potential which is graded to light intensity.
What is the Difference between a weak stimulus and intense stimulus?
The FREQUENCY of action potentials that are conducted into the central nervous system serves as the code for the strength of the stimulus. This frequency code is needed because the amplitude of action potentials is constatnt (all or none). Acting through changes in action potential frequency, tonic receptors thus provide information about the relative intensity of a stimulus.
What is the system that reacts to a stimulus?
Nervous system
What body systems are involved in reaction to a stimulus?
Fundamentally the system involved in a reaction to a stimuli is the nervous system.
Stimulus with a negative valence causes pain and discomfort?
nervous system
What is the primary nervous system stimulus that informs the biological clock?
balance
The detection and encoding of stimulus energies by the nervous system is called?
Sensation. This process involves the sensory organs detecting stimuli from the environment and converting them into neural signals that can be processed by the brain.
The process of receiving and representing stimulus energies by the nervous system is called?
The process of receiving and representing stimulus energies by the nervous system is called sensory transduction. This is where sensory receptors convert physical or chemical stimulus energy into electrical signals that can be transmitted and processed by the brain.
What is The process by which nervous or hormonal stimulus cause an organ to change activity?
Extrinsic Regulation
Which of the following is not a change that may be caused by hormonal stimulus?
direct control of the nervous system
What body systems work together to create a response to a stimulus?
nervous system and the brian
