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Are these two stimulus pulses different as regards their parameters of intensity and duration?
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What does a threshold stimulus cause?
Jesus
What is the relationship between a stimulus and a reponse?
The stimulus is your bodies reaction to something, say you burnt your hand, this is the stimulus. The reaction is your bodies response to it. In this sense the stimulus will be sensed by sensory neurones which pass an electrical impulse through relay neurons until the impulse gets to the Central Nervous System. This then, gives out another impulse which travels down a Motor Neuron to the muscle telling your hand to be removed from the surface.....
Pavlov's experiment was a typical case of classical conditioning because?
Classical conditioning is a learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus. In Pavlov's experiment the tone of a bell was the natural stimulus, and it caused salivating in response to food. Eventually the tone of the bell would produce salivating.
What is the absolute threshold?
An absolute threshold was seen as a hypothetical barrier that incoming stimuli must overcome before they can be perceived, it was based on the ability to pass through the threshold based on absolute judgements about a single stimulus. In the case where a person were to, for example- detect a light, the strength of said light would have to be strong enough to pass the threshold for an observer to perceive it, it was generally based on the observer's ability to detect a signal.In reality however, there is no such threshold that splits the stimulus dimension into detectable and undetectable components. Rather, a stimulus must yield a sensation that exceeds the decision criterion (beta) for even the weakest signal to be perceived, so a decision threshold is the stimulus that elicits the response or perception. The detectability and reporting of the presence of a signal- or the light- are both factors because the decision threshold must be passed and the results from the strength of the stimulus, for example the light- as well the evidence of yielding such strength, must be plausible. Only in this case, do we have correct detection of a signal.
What are the abilities involved in Thorndike's Law of Readiness?
* The most basic form of learning is trial and error learning. * Learning is incremental not insightful. * Learning is not mediated by ideas. * All mammals learn in the same manner. * Law of readiness Interference with goal directed behavior causes frustration and causing someone to do something they do not want to do is also frustrating. a.When someone is ready to perform some act, to do so is satisfying. b.When someone is ready to perform some act, not to do so is annoying. c.When someone is not ready to perform some act and is forced to do so, it is annoying. * Law of Exercise We learn by doing. We forget by not doing, although to a small extent only. a.Connections between a stimulus and a response are strengthened as they are used.(law of use) b.Connections between a stimulus and a response are weakened as they are not used.(law of disuse) * Law of effect If the response in a connection is followed by a satisfying state of affairs, the strength of the connection is considerably increased whereas if followed by an annoying state of affairs, then the strength of the connection is marginally decreased. * Multiple Responses A learner would keep trying multiple responses to solve a problem before it is actually solved. * Set or Attitude Set or attitude is what the learner already possesses, like prior learning experiences, present state of the learner, etc., while it begins learning a new task. * Prepotency of Elements Different responses to the same environment would be evoked by different perceptions of the environment which act as the stimulus to the responses. Different perceptions would be subject to the prepotency of different elements for different perceivers. * Response from analogy New problems are solved by using solution techniques employed to solve analogous problems. * )Associative Shifting Let stimulus S be paired with response R. Now, if stimulus Q is presented simultaneously with stimulus S repeatedly, then stimulus Q is likely to get paired with response R. * Belongingness If there is a natural relationship between the need state of an organism and the effect caused by a response, learning is more effective than if the relationship is unnatural.
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.
Does the duration of the latent period change with different stimulus voltage?
No sorry :(
What stimulus below this intensity will result in no response in a neuron?
Threshold stimulus
How does the brain perceive the intensity of a stimulus?
There are a number of different ways that the brain perceives stimuli. If a person is hurt, the brain sends a reaction to the body. If something good happens, the brain sends good reactions to the body.
What is meant by coding of stimulus intensity?
Threshold
What is the type of feedback where the net effect is that the output of the system shuts off the original stimulus or reduces its intensity?
In a negative feedback loop, the output of the system decreases the intensity of the stimulus.
Receptors provide information about the intensity of a stimulus through?
the frequency of their action potentials
The smallest intensity of a stimulus that you can detect 50 percent of the time is?
Absoulute threshold
What is the minimal intensity of stimulation necessary to trigger a muscle contraction?
threshold stimulus
What percentage of pain do you feel?
A very big chapter can be written on what is called as 'Pain sensation'. Pain is a feeling and is totally subjective. So same stimulus can induce pain of different intensity in a same individual at different times. Same stimulus can produce the the pain of different intensity in different individual. Some individuals may like the pain inflicted on them. The soldiers who got injured in war normally do not complain of pain as they are brought back from war site with a dignity and so they are happy.
What is the smallest increase or increase in the intensity of a stimulus a person can detect?
just noticeable difference
During the absolute refractory period an impulse may be triggered by a stimulus of high intensity?
true
