CONDICIONAMIENTO CLÁSICO(IVÁN PAVLOV.) STEFANNY ESPADA SAAVEDRA. IVÁN PAVLOV Iván Pavlov nace el 14 de septiembre de Raizán. SOLUCIÓN La Teoría del Condicionamiento Clásico, defendida por Ivan Pavlov, sostiene que el aprendizaje es producto de la sustitución de un estímulo. Classical conditioning refers to a learning procedure in which a biologically potent stimulus The best-known and most thorough early work on classical conditioning was done by Ivan Pavlov, although Edwin Twitmyer In Pavlov’s experiments the unconditioned stimulus (US)’ was the dog food because its effects did not.

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Learning and memory in the honeybee. Incentive salience integrates two separate input factors: Fundamentos en los que se basa el aprendizaje: Check out this article to learn more or contact your system administrator.

Each of these stimulus elements can be in one of three states:. However, the motivation power is never simply in the cues themselves or their associations, since cue-triggered motivation can be easily modulated and reversed by drugs, hungers, satieties, etc.

Classical conditioning

In the extinction procedure, the CS is presented pavpov in the absence of a US. This can also relate to eating certain foods while watching a scary movie turning into associating terror with the food that was being consumed at the times of watching the movie.

Autoshaping in rats to the presentation of ivxn rat predicting food. Para incrementar o reforzar una conducta: Slow pressing indicates a “fear” conditioned response, and it is an example of a conditioned emotional response; see section below. Many other more subtle phenomena are explained as well. However, after conditioning, the subject is no longer surprised, because the CS predicts the coming of the US.


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Pueden ser positivas o negativas. As CS-US pairings accumulate, the US becomes more predictable, and the increase in associative strength on each trial becomes smaller and smaller. This renders him unable to perform any violent acts without inducing similar nausea. Latent inhibition might happen because a subject stops focusing on a CS that is seen frequently before it is paired with a US.

Then a second neutral stimulus “CS2” is paired with the first CS1 and comes to yield its own conditioned response. Su efectividad depende de estas variables: The Rescorla-Wagner model argues that there is a limit iivan the amount of conditioning that can occur in the pairing of two stimuli.

A familiar example is conditioned nausea, in which the CS is the sight or smell of a particular food that in the past has resulted in an unconditioned stomach upset. Un reflejo normal puede disminuir su intensidad o desaparecer hiporreflexia y arreflexia.

If so, a drug user may increase the amount of drug consumed in order to feel its effects, and end up taking very large amounts uvan the drug. At the time of the test, these associations are compared, and a response to the CS occurs only if the CS-US association is stronger than the context-US association. That is, the US is fully predicted, the associative strength of the CS stops growing, and conditioning is complete. The influence of trial number and reinforcement history”.

The Rescorla-Wagner model treats a stimulus as a single entity, and it represents the associative strength of a stimulus with one number, with no record of how that number was reached.

Ivan Pavlov y el Condicionamiento Clasico.wmv

The light becomes the CS2 once it is paired with the CS1. The blocking effect is observed in a lack of conditional response to CS2, suggesting that the first phase of training blocked the acquisition of the second CS. This illustrates that the extinction procedure condjcionamiento not completely eliminate the effect of conditioning.


Most theories use associations between stimuli to take care of these predictions. In fact, changes in attention to the CS are at the heart of two prominent theories that try to cope with experimental results that give the R—W model difficulty.

Classical conditioning – Wikipedia

Frontiers in Synaptic Neuroscience. No se sabe hasta que punto son generalizables a los seres humanos las conclusiones obtenidas pavloc los experimentos con otros animales. This means that the CS elicits a strong CR.

Blocking and other more subtle phenomena can also be explained by comparator theories, though, again, they cannot explain everything. The conditioned response CR condicipnamiento the response to the conditioned stimulus, whereas the unconditioned response UR corresponds to the unconditioned stimulus.

The functional behaviorism of Robert C. The Rescorla—Wagner R—W model [5] [18] is a relatively simple yet powerful model of conditioning. Hearing the sound of a horn makes us stop before we attempt to cross the street.

Both fear and eyeblink conditioning involve a neutral stimulus, frequently a tone, becoming paired with an unconditioned stimulus. Llevaban una pata para atraer la fortuna. CREB is also necessary for conditioning related plasticity, and it may induce downstream synthesis of proteins necessary for this to occur.