TY  - JOUR
PY  - 2015//
TI  - Juvenile onset depression alters cardiac autonomic balance in response to psychological and physical challenges
JO  - Biological psychology
A1  - Bylsma, Lauren M.
A1  - Yaroslavsky, Ilya
A1  - Rottenberg, Jonathan
A1  - Jennings, J. Richard
A1  - George, Charles J.
A1  - Kiss, Eniko
A1  - Kapornai, Krisztina
A1  - Halas, Kitti
A1  - Dochnal, Roberta
A1  - Lefkovics, Eszter
A1  - Benák, István
A1  - Baji, Ildiko
A1  - Vetró, Agnes
A1  - Kovács, Mária
SP  - 167
EP  - 174
VL  - 110
IS  - 
N2  - Cardiac autonomic balance (CAB) indexes the ratio of parasympathetic to sympathetic activation (Berntson et al., 2008), and is believed to reflect overall autonomic flexibility in the face of environmental challenges. However, CAB has not been examined in depression. We examined changes in CAB and other physiological variables in 179 youth with a history of juvenile onset depression (JOD) and 161 healthy controls, in response to two psychological (unsolvable puzzle, sad film) and two physical (handgrip, and forehead cold pressor) challenges. In repeated measures analyses, controls showed expected reductions in CAB for both the handgrip and unsolvable puzzle, reflecting a shift to sympathetic relative to parasympathetic activation. By contrast, JOD youth showed increased CAB from baseline for both tasks (ps<.05). No effects were found for the forehead cold pressor or sad film tasks, suggesting that CAB differences may arise under conditions requiring greater attentional control or sustained effort.<p />  <p>Language: en</p>
LA  - en
SN  - 0301-0511
UR  - http://dx.doi.org/10.1016/j.biopsycho.2015.07.003
ID  - ref1
ER  -