title: Hyperthermia impaired pre-attentive processing: an auditory MMN study.
abstract: This study investigated the effect of hyperthermia on pre-attentive processing by recording the mismatch negativity (MMN) component of ERPs. 36 right-handed young male undergraduates were divided into two groups, a control group with 1h of exposure at 25°C and a heat group with 1h of exposure at 50°C. MMNs were recorded before and after heat exposure. It was found that, although there was no group difference before heat exposure, MMN declined significantly in the heat group compared to the control group after heat exposure for 1h, indicating that passive heat exposure could damage pre-attentive processing. The MMN component could be a good index to assess cognitive functioning in a hot environment.
authors.affiliation: Department of Medical Imaging, Jinan Military General Hospital, 25 Shifan Rd., Jinan, Shandong Province 250031, China. cjr.sungang@vip.163.com
authors.forename: Gang
authors.initials: G
authors.lastname: Sun
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: Qingjun
authors.initials: Q
authors.lastname: Jiang
mesh_terms: D000064:Acclimatization / Q000502:physiology; D001288:Attention / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D003072:Cognition Disorders / Q000209:etiology / Q000503:physiopathology*; D004569:Electroencephalography / Q000379:methods; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005221:Fatigue / Q000209:etiology / Q000503:physiopathology; D005334:Fever / Q000150:complications / Q000503:physiopathology*; D006801:Humans; D008297:Male; D055815:Young Adult