An analysis of associative learning in animals

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An analysis of associative learning in animals

Non-Associative and Associative Learning Non-associative Learning Most animals show some degree of non-associative learning. This means they change their response to a stimuli without association with a positive or negative reinforcement.

Animals frequently subjected to a stimulus will often become habituated to that stimulus--they will show a reduction or total elimination of response to a stimulus without positive or negative reinforcement.

If you poke them, sea slugs Aplysia will curl inwards. However, if you poke them repeatedly, the response will become less and less extreme until they do not withdraw at all. When presented with a novel stimulus, such as an electric shock, the sea slugs will recover their withdrawal response to poking.

Products of vectors.

This phenomenon in which the habituation disappears is, conveniently, known as dishabituation. Furthermore, the sea slugs can be sensitized, whereby they will show an increased response to poking after first being presented with a strong or novel stimulus.

The difference between dishabituation and sensitization is that dishabituation involves the recovery of the original response while sensitization produces a response stronger than the original one. Associative Learning Classical Conditioning Inthe Russian physiologist, Ivan Pavlov, began his famous experiments on conditioning.

Pavlov repeatedly presented a dog with food following the ringing of a bell. When the bell sounded without the presentation of food, the dog would still respond to the bell as if it were food.

The dog had learned to associate the sound of the bell with food. The bell he termed the conditional stimulus, or CS, because response to the bell was conditional upon the association between the bell and food.

For the same reasons, salivation in response to food was labeled the unconditional response, or UCR, while salivation in response to the bell was called the conditional response, or CR. Conditioning the dog to salivate at the sound of the bell occurred as a result of a contingency between the UCS and the CS.

It is also possible to negatively condition an animal by using an unpleasant UCS.

Spaced-repetition - torosgazete.com

However, in operant conditioning, an unassociated behavior becomes associated with a reward. A rat was placed inside the Skinner box; if the rat pressed down a lever inside the box then the box would release a food pellet.

Soon, the rat pressed the lever far more often than he would just by chance. Most likely, the first time the rat pressed the lever it was by chance. But with each instance of lever pressing, the operant is reinforced by reward with food.

The rat learns that pressing the lever is associated with food, and so he will increasingly press it. Almost any operant and reward system can be used effectively.What roles do mesolimbic and neostriatal dopamine systems play in reward? Do they mediate the hedonic impact of rewarding stimuli?

Do they mediate hedonic reward learning and associative prediction? Our review of the literature, together with results of a new study of residual reward capacity after dopamine depletion, indicates the answer to both questions is `no'.

An analysis of associative learning in animals

Spaced repetition is a technique for efficient memorization & practice of skills where instead of doing a lot of work quickly, each item’s practices are automatically spread out over time, with increasing durations as one learns the item.

Review/Model Systems Series A Systems Approach to the Cellular Analysis of Associative Learning in the Pond Snail Lymnaea Paul R.

An analysis of associative learning in animals

Benjamin,1 Kevin Staras, and Gyo¨rgy Kemenes Sussex Centre for Neuroscience, School of Biological Sciences, University of . Non-Associative and Associative Learning Non-associative Learning Most animals show some degree of non-associative learning.

This means they change their response to a stimuli without association with a positive or negative reinforcement. A Systems Approach to the Cellular Analysis of Associative Learning in the Pond Snail Lymnaea.

Paul R. Benjamin 1, Animals were tested and trained in an artificially-created hypoxic nitrogen-rich environment to increase the level of respiratory behavior (Lukowiak et al Cellular analysis of associative learning. The essential idea was that learning in animals could be explained by the formation of associative links between the processes that are concurrently activated by a stimulus (S) and a response motor program (R) when both are followed by a reinforcer (e.g., Hull, , Thorndike, ).

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