TY - JOUR
T1 - Neural evidence that conscious awareness of errors is reduced in depression following a traumatic brain injury
AU - Bailey, Neil
AU - Hoy, Kate Elizabeth
AU - Maller, Jerome Joseph
AU - Upton, Daniel John
AU - Segrave, Rebecca Anne
AU - Fitzgibbon, Bernadette
AU - Fitzgerald, Paul Bernard
PY - 2015
Y1 - 2015
N2 - Impaired error awareness is related to poorer outcome following traumatic brain injury (TBI). Error awareness deficits are also found in major depressive disorder (MDD), but have not been examined in the MDD that follows a TBI (TBI-MDD). This study assessed neural activity related to error awareness in TBI-MDD. Four groups completed a response inhibition task while EEG was recorded- healthy controls (. N=. 15), MDD-only (. N=. 15), TBI-only (. N=. 16), and TBI-MDD (. N=. 12). Error related EEG activity was compared using powerful randomisation statistics that included all electrodes and time points. Participants with TBI-MDD displayed less frontally distributed neural activity, suggesting reduced contribution from frontal generating sources. Neural activity during this time window is thought to reflect conscious awareness of errors. The TBI-only and MDD-only groups did not differ from controls, and early error processing was unaffected, suggesting early error detection is intact
AB - Impaired error awareness is related to poorer outcome following traumatic brain injury (TBI). Error awareness deficits are also found in major depressive disorder (MDD), but have not been examined in the MDD that follows a TBI (TBI-MDD). This study assessed neural activity related to error awareness in TBI-MDD. Four groups completed a response inhibition task while EEG was recorded- healthy controls (. N=. 15), MDD-only (. N=. 15), TBI-only (. N=. 16), and TBI-MDD (. N=. 12). Error related EEG activity was compared using powerful randomisation statistics that included all electrodes and time points. Participants with TBI-MDD displayed less frontally distributed neural activity, suggesting reduced contribution from frontal generating sources. Neural activity during this time window is thought to reflect conscious awareness of errors. The TBI-only and MDD-only groups did not differ from controls, and early error processing was unaffected, suggesting early error detection is intact
UR - http://www.sciencedirect.com/science/article/pii/S0301051115000216
U2 - 10.1016/j.biopsycho.2015.01.011
DO - 10.1016/j.biopsycho.2015.01.011
M3 - Article
SN - 0301-0511
VL - 106
SP - 1
EP - 10
JO - Biological Psychology
JF - Biological Psychology
ER -