title: Everyday prospective memory and executive function deficits associated with exposure to second-hand smoke.
abstract: This study explored whether exposure to second-hand smoke (SHS) has a detrimental impact upon everyday memory in two groups of non-smokers; one which reported regular exposure to SHS and one that reported never having been exposed to SHS. Thirty-four non-smokers who reported having been regularly exposed to SHS (SHS group) and 34 non-smokers who reported never having been exposed to SHS (non-SHS group) were compared on self-reports of prospective memory (PM: remembering future intentions and/or activities) and executive function (EF: those processes involved in attention, multitasking and decision-making). The Prospective and Retrospective Memory Questionnaire (PRMQ) assessed everyday PM lapses; the Executive Function Questionnaire (EFQ) assessed self-reported problems in EF; a drug-use questionnaire and a mood questionnaire were also administered. Two univariate ANCOVAs were applied to the PM and EF data, controlling for between-group differences in age, weekly alcohol use, anxiety and depression scores, and self-reported retrospective memory scores. The SHS group reported significantly more lapses on the PRMQ and more deficits on the EFQ than the non-SHS group. These findings provide new insights into PM and EF deficits associated with prolonged exposure to SHS in a group of non-smokers. Possible explanations and suggestions for future research are also considered.
authors.affiliation: Collaboration for Drug and Alcohol Research (CDAR), Division of Psychology, Department of Psychology, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Heffernan
authors.affiliation: Collaboration for Drug and Alcohol Research (CDAR), Division of Psychology, Department of Psychology, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
authors.forename: Terence S
authors.initials: TS
authors.lastname: O'Neill