Smoking and raven IQ

Con Stough*, Gordon Mangan, Tim Bates, O. Pellett

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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 correlates of IQ. In the current experiment we tested this hypothesis using the Raven Advanced Progressive Matrices (APM) test. APM scores were significantly higher in the smoking session compared to the non-smoking session, suggesting that nicotine acts to enhance physiological processes underlying performance on intellectual tasks.
Original languageEnglish
Pages (from-to)382-384
Number of pages3
Issue number3
Publication statusPublished - 1 Nov 1994


  • APM
  • intelligence
  • nicotine
  • smoking cholinergic system


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