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What stimulus below this intensity will result in no response in a neuron?
Any stimulus below the neuron's threshold potential will not result in a response, as it is not strong enough to generate an action potential. Neurons require a minimum level of stimulus intensity to reach the threshold potential and fire an action potential.
The smallest intensity of a stimulus that you can detect 50 percent of the time is?
The smallest intensity of a stimulus that you can detect 50 percent of the time is called the absolute threshold. This threshold varies depending on the sensory system and the specific stimulus being measured.
Strong stimuli cause the amplitude of action potentials generated to increase?
Yes. ....Up to a point. There is a threshold the stimulus must surpass before creating a CAP (compound action potential). Anything below this threshold is called subthreshold. Once the stimulus is strong enough cause a CAP it is a stimulus threshold. At this point the CAP will continue to increase as the intensity of the stimulus increases (now termed suprathreshold) until a maximal stimulus causes a maximum response. Any stimulus stronger than the maximal stimulus is called a supramaximal and does not result in any larger a CAP than the maximum response caused by the maximal stimulus. source: http://www.unmc.edu/physiology/Mann/mann12.html
What is threshold in medical terms?
In medical terms (since you categorised your question in "Health"), a threshold is defined as:1 - The minimal stimulus that produces excitation of a human structure (i.e - the minimal stimulus eliciting a motor response).2- The lower limit of perception for a stimulus.3 - The point at which a stimulus produces a sensation.In architectural terms, a threshold is defined as:1- A strip of metal, wood or stone forming the bottom of a doorway.2 - A point of entry or beginning in a building.
A muscle fiber will not respond to a stimulus until that stimulus reaches what?
A muscle fiber will not respond to a stimulus until that stimulus reaches the threshold level needed to trigger an action potential. This threshold level is the minimum amount of stimulus required to elicit a response from the muscle fiber.
What stimulus below this intensity will result in no response in a neuron?
Any stimulus below the neuron's threshold potential will not result in a response, as it is not strong enough to generate an action potential. Neurons require a minimum level of stimulus intensity to reach the threshold potential and fire an action potential.
What is meant by coding of stimulus intensity?
Threshold
What can increase a strong stimulus?
Increasing the intensity or frequency of the stimulus can strengthen its effect. Additionally, increasing the novelty or relevance of the stimulus can also enhance its impact. Finally, pairing the stimulus with a reward or reinforcement can make it more powerful.
The smallest intensity of a stimulus that you can detect 50 percent of the time is?
The smallest intensity of a stimulus that you can detect 50 percent of the time is called the absolute threshold. This threshold varies depending on the sensory system and the specific stimulus being measured.
What is an all-or-none response?
An all-or-none response refers to a biological principle where a neuron or muscle fiber responds to a stimulus with a full action potential or contraction, or not at all, depending on whether the threshold level of stimulation is reached. This means that once the stimulus surpasses a certain threshold, the response is uniform and complete, regardless of the stimulus's intensity. In neurons, this phenomenon ensures that signals are transmitted consistently and effectively.
Strong stimuli cause the amplitude of action potentials generated to increase?
Yes. ....Up to a point. There is a threshold the stimulus must surpass before creating a CAP (compound action potential). Anything below this threshold is called subthreshold. Once the stimulus is strong enough cause a CAP it is a stimulus threshold. At this point the CAP will continue to increase as the intensity of the stimulus increases (now termed suprathreshold) until a maximal stimulus causes a maximum response. Any stimulus stronger than the maximal stimulus is called a supramaximal and does not result in any larger a CAP than the maximum response caused by the maximal stimulus. source: http://www.unmc.edu/physiology/Mann/mann12.html
What is the minimal intensity of stimulation necessary to trigger a muscle contraction?
threshold stimulus
The minimum stimulus needed to cause a contraction is called the?
The minimum stimulus needed to cause a contraction is called the threshold stimulus. This is the minimal level of stimulation required to activate muscle fibers and initiate a contraction response.
What is threshold in medical terms?
In medical terms (since you categorised your question in "Health"), a threshold is defined as:1 - The minimal stimulus that produces excitation of a human structure (i.e - the minimal stimulus eliciting a motor response).2- The lower limit of perception for a stimulus.3 - The point at which a stimulus produces a sensation.In architectural terms, a threshold is defined as:1- A strip of metal, wood or stone forming the bottom of a doorway.2 - A point of entry or beginning in a building.
A muscle fiber will not respond to a stimulus until that stimulus reaches what?
A muscle fiber will not respond to a stimulus until that stimulus reaches the threshold level needed to trigger an action potential. This threshold level is the minimum amount of stimulus required to elicit a response from the muscle fiber.
What is a pain threshold?
A pain threshold is the point at which a person starts to feel discomfort or pain from a stimulus. It is the level of intensity at which a person perceives a sensation as painful. Different individuals have different pain thresholds.
What does the all-or-none law indicate about the behavior of neurons?
The all-or-none law states that a neuron either fires at full strength or does not fire at all in response to a stimulus. This indicates that neurons have a threshold for activation and once that threshold is reached, they will fire with a consistent intensity.
