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identified two brain circuits involved usual learning

habitual actions often do without thinking about whether or not notice them much.

For example, one can 'go home and get off at the train station as usual daydreams for something completely different.

Previous studies have shown that the structure more 'big basal ganglia, the body striatum may be important in learning based on the award.

Una parte dello striato controlla il movimento ed e' connessa alla corteccia sensomotoria, la quale e' coinvolta nel pianificare ed eseguire funzioni volontarie.

Un altro circuito nello striato controlla il comportamento flessibile ed e' connesso con la corteccia associativa.

Fino a ora, si sapeva poco su come questi due circuiti separati contribuissero all'apprendimento di nuovi comportamenti.

Di grande interesse lo studio condotto dai ricercatori del Massachussetts Institute of Technology (Mit) negli Stati Uniti pubblicato sulla rivista NEURON .

I ricercatori hanno registrato l'attivita' dei due circuiti striatali dei topi che imparavano the road to a hiding place containing a premium chocolate flavor in a maze.

To achieve the award, the mice had to find out the meaning of sound and tactile tips delivered to a T-junction in the maze.

mice have shown that the path to not 'become a habit.

As the mouse model, the circuits showed patterns of activity 'distinct evolved during the learning process.

One of them became more 'active when the mice had to do certain actions (eg start, stop or turn) and became more' strong as they learn the routine. The other became very active when the rat had to decide which way to turn, but as the rats learned the location, the signal is weakened.

appears that the two basal ganglionic circuits work in parallel in a sort of competition between the two circuits up to the time when the learned behavior becomes a habit.

These brain circuits are affected by Parkinson's disease, from substance abuse and many psychiatric disorders.

If we can learn how to address the competition in one direction or another, we could help bring new points of interest in the existing treatments and perhaps help develop new therapies.