Meditation as Trauma Therapy: A Cognitive Neuroscience ...
Transcript of Meditation as Trauma Therapy: A Cognitive Neuroscience ...
Meditation as Trauma Therapy: A Cognitive Neuroscience Perspective
Peter J. Bayley, Ph.D.
War Related Illness and Injury Study Center (WRIISC)
VA Palo Alto Health Care System
Clinical Assistant Professor (Affiliated)
Department of Psychiatry and Behavioral Sciences, Stanford University
&
Ram Chelakara, PhD.
Faculty: International Association for Human Values
28th Annual Trauma Conference, Boston, MA 2017
Workshop Outline
Subtle Yoga
Meditation as a treatment for PTSD
Pilot study – Sudharshan Kriya Yoga (SKY) as a
treatment for PTSD
Effects of SKY on cognition and sleep
Bhastrika Break
Sleep to forget and sleep to remember (SFSR)
model of emotional memory processing
Current study – SKY vs. Cognitive Processing
Therapy for treating PTSD
Experience a taste of SKY
Risk For Suicide is Higher Among Veterans When Compared With U.S. Civilian Adults
In 2014, an average of 20 Veterans died by suicide each day. Six of
the 20 were users of VHA services
In 2014, Veterans accounted for 18 percent of all deaths by suicide
among U.S. adults and constituted 8.5 percent of the U.S. adult
population
In 2014, rates of suicide were highest among younger Veterans
(ages 18–29) and lowest among older Veterans (ages 60+).
Suicide rate among recent Veterans is 50 % higher than non-
military civilians.
US Dept. of Veterans Affairs (2016), Office of Suicide Prevention
Current Treatments for PTSD
Pharmaceutical
Therapeutic: Exposure/Cognitive Behavioral
Problems
Overall: High dropout
Pharmaceutics: aversive side effects, results mixed
Therapy: difficulty revisiting trauma; substantial residual effects
Stigma
Unwillingness to be a victim/dependent & rely on drugs/therapist
Post-Traumatic Stress Disorder (PTSD) Diagnostic Criteria – DSM-5
Anxiety disorder that develops after exposure to trauma:
A. Exposure to actual or threatened death/injury
B. Intrusion Symptoms (thoughts, distressing dreams, dissociative reactions)
C. Avoidance Symptoms (memories, thoughts, feelings)
D. Negative cognitive and mood symptoms (amnesia for event, detachment
from others)
E. Arousal and reactivity (hyper-vigilance, Startle, Anxiety, Insomnia)
Meditation is effective for treating PTSD: Systematic Review and Meta-Analysis
10 trials (N=643)
Cohen’s d = 0.41; CI [0.81, 0.01]
PTSD symptoms for adjunctive meditation interventions were statistically
significantly different compared with all comparators in favor of meditation
Substantial heterogeneity in study quality
Hilton et al., (2016) Psychol Trauma
Sudarshan Kriya Yogic (SKY) Breathing
Prana – translates to “life force” or “energy”
Pranayama- “control of energy” and “expansion of energy”
Breathing techniques have potential to relieve stress-related illness including
-anxiety
-depression
-PTSD
Breathing under both voluntary and involuntary control via complex feedback
loops involving
- autonomic visceral networks
-brains stem nuclei
- limbic system
- cortical areas
- neuroendocrine system
By voluntarily controlling breathing it is possible to influence these networks
and hence mood and cognition.
Sudarshan Kriya Yogic (SKY) Breathing Developed by Sri Sri Ravi Shankar, cofounder of the
International Association for Human Values
International Association of Human Values holds special
consultative status with the United National Economic
and Social Council (ECOSOC).
Widely used across many cultures
Follows a reproducible sequence
Research and clinical experience demonstrates it
significantly alleviates
Stress
Anxiety
Depression
SKY has 4 breath components
1. Three-stage pranayam using ujjayi – 2-4 breaths per minute. Subjective
experience of mental and physical calmness with alertness
2. Bhastrika – (Bellows Breath) – air is rapidly inhaled and forcefully exhaled at 30
breaths per minute. It engenders excitation followed by calmness
3. Chanting of “om” chanted 3 times with very prolonged expiration.
4. Sudarshan Kriya (cyclical breathing) –an advanced form of cyclical breathing at
various rates.
SKY courses also include: Yoga-based stretching
Guided relaxation after the practice
Aspects of CBT and psychoeducation
Group exercises to teach self-awareness, connectedness and create a sense of
community
Effects Of A Yoga Breath Intervention Alone And In Combination With An Exposure Therapy For PTSD In Survivors Of The 2004 South-east Asia Tsunami
Group Mean PCL-17 Test Scores Changes in Mean Test
Scores ± SD
Base
1
week
6
weeks
12
weeks
24
weeks 0-6 weeks 0-24 weeks
Yoga
breath66.5 27.5 23.9 26.7 20.6 42.5 ± 10.0 45.5 ± 9.6
Yoga
breath+
trauma
reduction
therapy
64.1 _ 24.6 27.0 19.6 39.2 ±17.2 44.6 ± 11.3
Wait list
control67.9 _ 63.3 _ _ 4.6 ± 13.2 _
• N=183: Initial PCL moderate/severe (> 50)
• Yoga breath:8-hrs given in 2-h sessions over four consecutive days
• Traumatic Reduction Therapy: 3-5 individual sessions lasting 1–3 hrs per
session, addressing trauma
Descilo et al., (2010) Acta Psychiatr Scand
Design21 Male Participants
• Inclusion criteria: OEF/OIF veteran
• Exclusion criteria: substance dependence, psychosis, alpha/beta blockers, severe TBI/
cognitive impairment
• 2 Groups (Active Group N = 11, Wait-List Control Group N = 10)
• Groups matched for ethnicity, education, marital status, combat exposure and PTSD
symptoms
• Average Age = 28 (range = 22 to 45)
• Ethnicity (90% European-American, 10% Asian-American)
Longitudinal Design
TIME 1: Pre Questionnaires, Psychophysiology, Neuropsych Testing (SKY N=11,
CNTRL N=10)
TIME 2: Post Questionnaires, Psychophysiology, Neuropsych Testing (SKY N=10,
CNTRL N=10)
TIME 3: 1 month post Questionnaires (SKY N=8, CNTRL N=8)
TIME 4: 1 year post Questionnaires (SKY N=9, CNTRL N=8)
Seppala et al. (2014) J. Traumatic Stress
- SKY Breathing
- Gentle yoga
- Meditation
- Group processes
- Discussion
Seppala et al. (2014)
J. Traumatic Stress
Intervention: 7-day, 24-hour Breath-Based Meditation Intervention SKY
0
5
10
15
Time 1 Time 2 Time 3 Time 4
Hyp
erar
ou
sal (
PC
L-D
)
PCL, F(2.03, 57) = 4.46, p < .02, ηp2 = .19
PCL-D F(2.21, 57) = 6.51, p < .003, ηp2 = .26
Seppälä et al. (2014) J. Traumatic Stress
Startle was reduced in theSKY group
0
5
10
15
Time 1 Time 2 Time 3 Time 4
Hyp
erar
ou
sal (
PC
L-D
)
PCL, F(2.03, 57) = 4.46, p < .02, ηp2 = .19
PCL-D F(2.21, 57) = 6.51, p < .003, ηp2 = .26
-15
-10
-5
0
5
-300 -200 -100 0 100
Ch
ange
inH
yper
aro
usa
l (P
CL-
D)
Change in Startle (µv)
r = .90, p < .001
Fisher’s z = 2.93, p < .004
Seppälä et al. (2014) J. Traumatic Stress
Startle was reduced in theSKY group
Respiration was reduced in the SKY group
0
4
8
12
Time 1 Time 2
Res
pir
atio
n C
ou
nt
F(1, 19) = 7.83, p < .02, ηp2 = .29
Seppälä et al. (2014) J. Traumatic Stress
Sleep quality was improved in the SKY group
0
5
10
Time 1 Time 2 Time 3 Time 4
Slee
p P
rob
lem
s (P
SQ)
PSQ, F(3.00, 57) = 2.77, p < .05, ηp2 = .13
Seppälä et al. (2014) J. Traumatic Stress
10000
10500
11000
11500
12000
12500
13000
13500
Time 1 Time 2
SKY
WLC
Tim
e to F
inis
h (
ms)
F(1, 19) = 4.45, p < .05, ηp2 = .19
Spatial Working Memory (CANTAB) was improved in the SKY group
Follow-up Study Based on Mechanism of Action
Mechanisms of SKY meditation are currently
unclear
Mechanism is important to define in order to
refine treatment
From the perspective of cognitive neuroscience,
potential mechanisms may relate to changes in
sleep and memory processing
Post-Traumatic Stress Disorder (PTSD) Diagnostic Criteria – DSM-5
Anxiety disorder that develops after exposure to trauma:
A. Exposure to actual or threatened death/injury
B. Intrusion Symptoms (thoughts, distressing dreams, dissociative reactions)
C. Avoidance Symptoms (memories, thoughts, feelings)
D. Negative cognitive and mood symptoms (amnesia for event, detachment
from others)
E. Arousal and reactivity (hyper-vigilance, Startle, Anxiety, Insomnia)
Sleep problems represent two of the diagnostic criteria for PTSD in DSM-5
B2: recurrent distressing dreams in which
the content and/or affect of the dream are
related to the traumatic event.
E6: sleep disturbance (e.g., difficulty falling
or staying asleep or restless sleep).
Treatment Groups
CPT-C
Manualized VA treatment
for PTSD
Revising maladaptive
cognition;
-responsibility
-trust
-intimacy
6 weeks
2 x 1 hour sessions per
week
Licensed Clinical
Psychologist
SKY
6 weeks
5-day intensive group
class (2.5 hours/day)
2 x 1 hour sessions per
week for five weeks
The Paradox of Traumatic Memory
Emotionally salient memories are more
persistent and vivid than non-emotional
memories, but normally there is a gradual
reduction in emotional salience over time
Why don’t traumatic memories fade over time?
Semantic Non-personal Memory Fades With Time: Performance On A Test Of News Events That Occurred From 1951 To 2005
Bayley, P. J., Hopkins, R. O., & Squire, L. R. (2006). J Neurosci
N=13
age = 51.6 y
Autobiographical memory is more enduring: performance on the Autobiographical Interview
0
3
6
9
Recent Early adult Childhood
Sc
ore
Time Period
Bayley, P. J., Hopkins, R. O., & Squire, L. R. (2006). J Neurosci
The Affect Associated With Unpleasant Events Fades Faster Than The Affect Associated With Pleasant Events
Mean C
hange in I
nte
nsity R
atings
Pleasant Unpleasant
Pleasantness
Walker, Vogl & Thompson (1997), Applied Cognitive Psychology
Memory consolidation during sleep allows
memories to be integrated with existing
memories
Memory consolidation may involve
decoupling of emotion and memory during
REM sleep (Walker).
REM sleep may be chronically impaired,
or defragmened (Melman) in PTSD so
emotional “tag” is not removed from the
trauma memory
Sleep To Forget And Sleep To Remember (SFSR) Model Of Emotional Memory Processing
van der Helm & Walker, 2009, Psychol Bull
Study Test (“similar”)
Similar Items Test For Pattern Separation: Distinct, Minimally Overlapping Memory Representation – DG and CA3 Region of Hippocampus
Study Test (“same)
Same Items Test For Pattern Completion: Stored Memory Representations Reactivated From Degraded Or Noisy Cues In A Process Of Generalization-CA1 region of hippocampus
Sleep Has A Beneficial Effect On Pattern Separation
Patt
ern
Separa
tion S
core
Immediate 12hr
Study-Test Delay
Pattern separation score =p(sim | lure) – p(sim | novel)
Doxey and Kirwan (submitted)
Immediate 12hr
Study-Test Delay
Recognitio
n M
em
ory
Score
Sleep Has No Effect On Recognition Memory
Recognition memory score =p(old | repeat) – p(old | novel)
PTSD and Cognition
Relationship between PTSD and cognitive functioning is not clear
Typically effects memory, attention, and executive functioning.
Memory problems could be accounted for by attentional difficulties –
e.g., internal distraction due to hyperarousal, hypervigilance, re-
experiencing.
Some anatomical studies show reduced hippocampal volume. This
may be cause or effect.
Possible that standard neuropsychological tests are not sufficiently
sensitive to PTSD, which would be revealed by computerized
cognitive battery.
Summary
Tests of cognition function and sleep are not usually
included in meditation studies.
Tests of cognitive function and sleep provide objective
measures for studies of PTSD and complement self-
reported measures.
Mechanisms of meditation-based therapies are currently
unclear.
Mechanism important to refine and optimally implement
meditation-based approaches.
More research needed on alternative and complimentary
treatments