Exposure to second-hand smoke damages everyday prospective memory
Version of Record online: 18 OCT 2012
© 2012 The Authors, Addiction © 2012 Society for the Study of Addiction
Volume 108, Issue 2, pages 420–426, February 2013
How to Cite
Heffernan, T. M. and O'Neill, T. S. (2013), Exposure to second-hand smoke damages everyday prospective memory. Addiction, 108: 420–426. doi: 10.1111/j.1360-0443.2012.04056.x
- Issue online: 17 JAN 2013
- Version of Record online: 18 OCT 2012
- Accepted manuscript online: 23 AUG 2012 06:08AM EST
- Manuscript Accepted: 14 AUG 2012
- Manuscript Revised: 8 JUN 2012
- Manuscript Received: 29 MAR 2012
- prospective memory;
- second-hand smoke
Prospective memory (PM: remembering future intentions and activities) is critical to everyday remembering. This study compared a group of never-smokers who reported regular exposure to second-hand smoke (the SHS group) with a group of current smokers (the CS group) and a group of never-smokers who reported never having been exposed to SHS (the non-SHS group) on objective PM.
An existing groups design was employed to compare the SHS, CS and non-SHS groups.
Participants and setting
Twenty-four SHS, 27 CS and 28 non-SHS were tested on objective PM. All participants were university undergraduates aged between 18–30 years. All participants were tested individually in a laboratory setting.
The Cambridge Prospective Memory Test (CAMPROMPT) was used to assess objective PM. Age, other drug use, mood and IQ were also measured as covariates in the study.
The non-SHS group recalled significantly more time-based PM tasks than the SHS group (means = 16.3 versus 13.7, P < 0.001) and significantly more than the CS group (CS mean = 11.6, P < 0.001); and the SHS group recalled significantly more time-based tasks than the CS group (P < 0.002). The non-SHS group recalled significantly more event-based PM tasks than the CS group (means = 15.2 versus 11.3, P < 0.002) with no significant difference between the non-SHS group and SHS group (SHS mean = 14.3, P = 0.234); and the SHS group recalled significantly more event-based tasks than the CS group (P < 0.001).
Non-smokers exposed to second-hand smoke may suffer impairment in time-based prospective memory.