Smoking and raven IQ

@article{Stough2005SmokingAR,
  title={Smoking and raven IQ},
  author={Con Stough and Gordon L. Mangan and Timothy C. Bates and O. Pellett},
  journal={Psychopharmacology},
  year={2005},
  volume={116},
  pages={382-384}
}
Nicotine has recently been shown to enhance measures of information processing speed including the decision time (DT) component of simple and choice reaction time and the string length measure of evoked potential waveform complexity. Both (DT and string length) have been previously demonstrated to correlate with performance on standard intelligence tests (IQ). We therefore hypothesised that nicotine is acting to improve intellectual performance on the elementary information processing… 
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