Tuesday, September 16, 2014

Concept of Time May Predict Impulsive Behavior, Research Finds

Obesity, gambling, substance abuse and attention deficit hyperactivity disorder are just some disorders that have been linked to impulsive behavior, but the factors contributing to that impulsivity are still a mystery. Research from Kansas State University suggests that understanding the concept of time could predict an individual's impulsive choices. [Kimberly] Kirkpatrick; Aaron Smith, department of psychology at the University of Kentucky; and Andrew Marshall, doctoral student in psychology at Kansas State University, published "Mechanisms of Impulsive Choice: I. Individual Differences in Interval Timing and Reward Processing" in the Journal of the Experimental Analysis of Behavior. The researchers studied rats to determine if particular factors affect individual choices, particularly looking at how long rats can wait to earn a larger reward. Rats were given two different levers to push. One lever produced a small treat after a short time, the other lever produced a larger treat that required waiting longer — a scenario Kirkpatrick said was common for humans. more

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