Abstract
Frontal EEG alpha asymmetry was recorded from five depressed outpatients during early EEG biofeedback sessions. Mood was assessed prior to and after each session, and affect change scores were also derived by subtracting pre-session from post-session scores. Alpha magnitude was obtained via Fast Fourier Transforms. All scores (EEG alpha asymmetry and affect) were converted to deviation scores by subtracting each patient's daily score from that patient's mean across all available sessions for that patient. Pearson correlations were then computed between asymmetry and affect scores using the deviation scores combined over patients. There was little evidence of correlation between day-to-day asymmetry score and any single affect score. Strong correlations were obtained, however, between asymmetry score and affect change score and, in particular, between asymmetry score and change in positive affect.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 137-141 |
| Number of pages | 5 |
| Journal | International Journal of Psychophysiology |
| Volume | 23 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Aug 1996 |
| Externally published | Yes |
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Keywords
- Alpha asymmetry
- Cortical activation asymmetry
- Electroencephalogram
- Emotion
ASJC Scopus subject areas
- Behavioral Neuroscience
Cite this
Preliminary evidence that daily changes in frontal alpha asymmetry correlate with changes in affect in therapy sessions. / Rosenfeld, J. Peter; Baehr, Elsa; Baehr, Rufus; Gotlib, Ian H.; Ranganath, Charan.
In: International Journal of Psychophysiology, Vol. 23, No. 1-2, 08.1996, p. 137-141.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preliminary evidence that daily changes in frontal alpha asymmetry correlate with changes in affect in therapy sessions
AU - Rosenfeld, J. Peter
AU - Baehr, Elsa
AU - Baehr, Rufus
AU - Gotlib, Ian H.
AU - Ranganath, Charan
PY - 1996/8
Y1 - 1996/8
N2 - Frontal EEG alpha asymmetry was recorded from five depressed outpatients during early EEG biofeedback sessions. Mood was assessed prior to and after each session, and affect change scores were also derived by subtracting pre-session from post-session scores. Alpha magnitude was obtained via Fast Fourier Transforms. All scores (EEG alpha asymmetry and affect) were converted to deviation scores by subtracting each patient's daily score from that patient's mean across all available sessions for that patient. Pearson correlations were then computed between asymmetry and affect scores using the deviation scores combined over patients. There was little evidence of correlation between day-to-day asymmetry score and any single affect score. Strong correlations were obtained, however, between asymmetry score and affect change score and, in particular, between asymmetry score and change in positive affect.
AB - Frontal EEG alpha asymmetry was recorded from five depressed outpatients during early EEG biofeedback sessions. Mood was assessed prior to and after each session, and affect change scores were also derived by subtracting pre-session from post-session scores. Alpha magnitude was obtained via Fast Fourier Transforms. All scores (EEG alpha asymmetry and affect) were converted to deviation scores by subtracting each patient's daily score from that patient's mean across all available sessions for that patient. Pearson correlations were then computed between asymmetry and affect scores using the deviation scores combined over patients. There was little evidence of correlation between day-to-day asymmetry score and any single affect score. Strong correlations were obtained, however, between asymmetry score and affect change score and, in particular, between asymmetry score and change in positive affect.
KW - Alpha asymmetry
KW - Cortical activation asymmetry
KW - Electroencephalogram
KW - Emotion
UR - http://www.scopus.com/inward/record.url?scp=0030219073&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030219073&partnerID=8YFLogxK
U2 - 10.1016/0167-8760(96)00037-2
DO - 10.1016/0167-8760(96)00037-2
M3 - Article
C2 - 8880374
AN - SCOPUS:0030219073
VL - 23
SP - 137
EP - 141
JO - International Journal of Psychophysiology
JF - International Journal of Psychophysiology
SN - 0167-8760
IS - 1-2
ER -