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Research Interests My main research is in health psychology and in psychophysiology and I have a secondary interest in the treatment of anxiety disorders. My current research focuses in stress in health professionals and on cardiovascular disease. Most of my work is directed at informing psychological interventions designed to improve health and evaluating such interventions. My
current work is conducted in collaboration with
colleagues and students in Aberdeen and research groups in Dundee [Martyn
Jones, Marion
McMurdo, Alan
Struthers], Fife NHS
[Mike
Dow], Oxford [David
Mant], Cambridge [Anne
Louise Kinmonth], Queensland [Justin
Kenardy], Stanford [Barr
Taylor], Portugal [Teresa McIntyre, Scott McIntyre].
Current research focus
Healthcare: stress in health professionals Health
professionals have demanding
jobs which are often associated with significant distress, burnout and
ill health. I have been investigating stress in health care professionals
with Dr Martyn Jones in the University of Dundee and, in Portugal, with
Dr Scott McIntyre (ISMAI Instituto Superior da Maia) and Dr Theresa
McIntyre (University of Minho). Our
main innovations in measurement in these projects is the use of electronic
methods of ecological momentary assessment (EMA) to assess distress and
its possible determinants throughout the working day. We are also continuing
to develop a measure of stress in nurses which we published previously
(Jones M.C., & Johnston,
D.W. (1999) The derivation
of a brief nurse stress index. Work
& Stress; 13:161-181). We
examine the psychological, educational and vocational factors that are
associated with distress, job dissatisfaction and health in cross sectional
and longitudinal studies of nurses in training and practising health professionals.
Theories that guide this work include
Karasek’s Demand Control model and Siegrist’s Effort Reward Imbalance
Model. We have also evaluated the practical effects of intervention and
in 2000 we reported a randomised trial of a form of stress management
which successfully reduced distress in distressed student nurses, even
when taking their final examination (Jones M.C & Johnston,
D.W. (2000). Evaluating
the impact of a worksite stress management programme for distressed student
nurses: a randomised controlled trial. Psychology and Health. 15, 689-706) Cardiovascular
Disease: determinants and
consequences. It
is commonly held that cardiovascular disease is to some extent determined
by stress or personality or some interaction of both in vulnerable individuals;
and it is generally accepted that cardiovascular disease is associated
with modifiable distress and disruption to life. We study the effects of psychological stress on the cardiovascular system in healthy volunteers both in the laboratory and in real life. In a series of studies we have examined the relationship between reactivity to laboratory and real life stressors (e.g., Johnston,
D.W., Schmidt, T., Vagt, S., McSorley, K., Albus, C., Klingmann,
I., Bethge, H. (1994). The relationship between cardiovascular reactivity
in the laboratory and heart rate responsiveness in real life: Active Coping
and ß blockade. Psychosom. Med., 56, 369-376;
Jain, A., Schmidt, T.F.H., Johnston,
D.W., Brabant, G., & von zur Muhlen, A. (1998). The relationship
between heart rate and blood pressure reactivity in the laboratory and
in the field: evidence using continuous measures of blood pressure, heart
rate and physical activity. J Psychophysiology, 12, 362-275.).
We are currently studying public speaking in an academic context
as a real life stressor using both ambulatory cardiovascular measurement
and the electronic EMA methods we developed in our studies of health professionals.
A PhD student, Yong Pen Why, is conducting studies of relationship
between cardiovascular reactivity and aspects of hostility.
With colleagues we have developed methods of measuring activity
and posture in real life situations (see Tuomisto, M.T., Johnston,
D.W. & Schmidt, TFH. (1996). A comparison of continuous measures
of posture, thigh acceleration and muscle tension and their relationship
to heart rate. Psychophysiology, 33, 409-415.) and we have worked for some time
on an interactive heart rate monitor which detects periods of excessive
heart rate in real life (see Johnston,
D.W. (1996) Improving control and psychological event detection
during ambulatory cardiovascular recording. In J Fahrenberg & M Myrtek
(Eds) Ambulatory assessment:
computer assisted psychological and psychophysiological methods in monitoring
and field studies. Hogrefe
& Huber, Seattle, pp 129-140) We use a variety of theories in
this work and we have suggested that chronic stress is most likely to
affect the gradual processes of arterial deterioration while acute stress
may have its effects on the catastrophic processes immediately before
and during a myocardial infarction (Johnston
DW (2002) Acute and chronic psychological processes in cardiovascular
disease. In ,Schaie,K.W.,
Leventhal,H., & Willis,S.L.,
Eds. Effective health behavior in older Adults, New York, Springer. pp
55-64) The
increasingly large numbers of patients who have survived a myocardial
infarction or have developed heart failure present a major challenge to
the healthcare system. We
are examining the determinants of health and illness behaviours in such
patients and are involved in various studies to alter such behaviours.
In collaboration with Professors David Mant (University of Oxford)
and Ann-Louise Kinmonth (University of Cambridge) we have recently shown
that Perceived Behaviour Control predicts activity, fitness and smoking
cessation 12 months after an MI (Johnston, DW, Johnston,
M, Pollard, B, Kinmonth, AL, Mant, D (In Press) Motivation is not enough:
Prediction of risk behavior following diagnosis of coronary heart disease
from the theory of planned behavior. Health Psychology).
With Professors Marion McMurdo and Alan Struthers of the University
of Dundee and a PhD student, Chuan Gao, we are currently using the Theory
of Planned Behaviour to predict exercise and activity in older patients
with congestive heart failure. Gerry
Molloy, a PhD student, is examining carer burden in the informal carers
of patients with CHF. We
developed and tested an effective nurse led intervention which was very
effective in patients after an MI and their spouses (Johnston M, Foulkes
J, Johnston DW, Pollard B,
Gudmundsdottir H. (1999) The impact on patients and partners of inpatient
and extended counseling and rehabilitation: a controlled trial: Psychosomatic
Med 61, 225-233) and
we working with McMurdo and Struthers on a trial of exercise in congestive
heart failure. Anxiety Disorders With colleagues in Scotland, Australian & the USA We have recently published an international multi-centre trial of computer assisted cognitive behaviour therapy for panic disorder (Kenardy, J.A., Dow, M.G.T., Johnston, D.W., Newman, M.G., Thomson, A., & Taylor, C.B. (2003). A comparison of delivery methods of cognitive behavioral therapy for panic disorder: an international trial. Journal of Consulting and Clinical Psychology, 71, 1068-1075)
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