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Goals and Habits Elicit Similar Brain Activity

by Tanya Thomas on March 27, 2011 at 12:37 PM
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 Goals and Habits Elicit Similar Brain Activity

A team of researchers has found that pursuing carefully planned goals and engaging in more automatic habits show overlapping neurological mechanisms.

The finding may offer a pathway for beginning to address addiction and similar maladies.

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The brain is believed to engage in two types of decision-making processes-deliberative and automatic or habitual.

While the mechanisms behind these behaviours are distinct, the researchers have had difficulty separating them behaviourally as they both typically pursue common ends.
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The researchers on the neuron study sought to differentiate both types of decision making by studying how humans' decisions and brain activity, measured using functional magnetic resonance imaging (fMRI), were influenced by previously received vs. potential future rewards in a gambling game.

In the experiments, the subjects were asked to make two sets of choices, with a monetary reward given if they made certain selections.

By analysing how subjects adjusted their choices based on winning, or failing to win, money, the researchers found that a habitual decision was distinct from a goal directed one.

Having dissociated the two types of decisions, the researchers examined the brain activity related to decision processes.

Despite the distinctions between goal-directed and habitual behaviours, the researchers found that the brain activity was similar for both types of action.

"This surprising result shows that the brain's systems for different behaviors are more intertwined than previously thought," said Nathaniel Daw, assistant professor in the New York University's Center for Neural Science and Department of Psychology and one of the study's co-authors.

The findings appear in the latest issue of the journal Neuron.

Source: ANI
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