Abstract
Resting frontal encephalographic (EEG) asymmetry, often conceptualized as a trait marker for depression, is influenced by occasion-specific factors, including time of year and the time of day of the recording session as demonstrated recently (Peterson and Harmon-Jones, 2009). The current study examined the influence of seasonal and chronological variables on resting frontal asymmetry, and also assessed whether different reference montages or surface transformations were equally susceptible to these influences. In a direct replication attempt, contrary to previous findings, no simple time of year by time of day interaction was found. Time awake at recording, however, was an important moderating variable of the relationship between photoperiod and time of day. EEG asymmetry scores based on current-source density (CSD) transformed data, however, appeared less vulnerable to these influences, providing further evidence to suggest that the CSD transform may be advantageous for examining stable trait estimates of frontal EEG asymmetry.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 283-291 |
| Number of pages | 9 |
| Journal | Biological Psychology |
| Volume | 91 |
| Issue number | 2 |
| DOIs | |
| State | Published - Oct 2012 |
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Keywords
- EEG asymmetry
- Photoperiod
- Seasonal
- Trait
ASJC Scopus subject areas
- Neuroscience(all)
- Neuropsychology and Physiological Psychology
Cite this
Should it matter when we record? Time of year and time of day as factors influencing frontal EEG asymmetry. / Velo, Jamie R.; Stewart, Jennifer L.; Hasler, Brant P.; Towers, David N.; Allen, John JB.
In: Biological Psychology, Vol. 91, No. 2, 10.2012, p. 283-291.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Should it matter when we record? Time of year and time of day as factors influencing frontal EEG asymmetry
AU - Velo, Jamie R.
AU - Stewart, Jennifer L.
AU - Hasler, Brant P.
AU - Towers, David N.
AU - Allen, John JB
PY - 2012/10
Y1 - 2012/10
N2 - Resting frontal encephalographic (EEG) asymmetry, often conceptualized as a trait marker for depression, is influenced by occasion-specific factors, including time of year and the time of day of the recording session as demonstrated recently (Peterson and Harmon-Jones, 2009). The current study examined the influence of seasonal and chronological variables on resting frontal asymmetry, and also assessed whether different reference montages or surface transformations were equally susceptible to these influences. In a direct replication attempt, contrary to previous findings, no simple time of year by time of day interaction was found. Time awake at recording, however, was an important moderating variable of the relationship between photoperiod and time of day. EEG asymmetry scores based on current-source density (CSD) transformed data, however, appeared less vulnerable to these influences, providing further evidence to suggest that the CSD transform may be advantageous for examining stable trait estimates of frontal EEG asymmetry.
AB - Resting frontal encephalographic (EEG) asymmetry, often conceptualized as a trait marker for depression, is influenced by occasion-specific factors, including time of year and the time of day of the recording session as demonstrated recently (Peterson and Harmon-Jones, 2009). The current study examined the influence of seasonal and chronological variables on resting frontal asymmetry, and also assessed whether different reference montages or surface transformations were equally susceptible to these influences. In a direct replication attempt, contrary to previous findings, no simple time of year by time of day interaction was found. Time awake at recording, however, was an important moderating variable of the relationship between photoperiod and time of day. EEG asymmetry scores based on current-source density (CSD) transformed data, however, appeared less vulnerable to these influences, providing further evidence to suggest that the CSD transform may be advantageous for examining stable trait estimates of frontal EEG asymmetry.
KW - EEG asymmetry
KW - Photoperiod
KW - Seasonal
KW - Trait
UR - http://www.scopus.com/inward/record.url?scp=84865407117&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865407117&partnerID=8YFLogxK
U2 - 10.1016/j.biopsycho.2012.06.010
DO - 10.1016/j.biopsycho.2012.06.010
M3 - Article
C2 - 22867950
AN - SCOPUS:84865407117
VL - 91
SP - 283
EP - 291
JO - Biological Psychology
JF - Biological Psychology
SN - 0019-493X
IS - 2
ER -