Response Inhibition And RT Variability: One and the Same? [Developing Intelligence]
Published by n1kk1 February 19th, 2007 in Uncategorized. Tags: No Tags.The distributions of reaction times are always positively skewed, which seems to reflect two independent processes: a normal gaussian distribution of reaction times, in addition to an exponentially-decaying distribution of a few very long trials. Measures of this reaction time (RT) variability show surprisingly strong correlations with fluid intelligence, and have been interpreted to reflect things as diverse as goal neglect, overly liberal updating of working memory, erratic bursts of dopamine release, or tonically elevated levels of noradrenaline. But these explanations are not mutually exclusive.
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Response Inhibition And RT Variability: One and the Same? [Developing Intelligence]