Neural Correlates of Cognitive Rehabilitation in Post-Traumatic Stress Disorder (PTSD)

Neural Correlates of Cognitive Rehabilitation in PTSD

Post Traumatic Stress Disorder (PTSD) is an emotional disorder that can also lead to problems with attention and memory. Cognitive training has been successfully used to improve attention and processing speed in other patient populations as well as healthy elderly. The purpose of this study is to examine how effective cognitive training will be in Veterans with PTSD.

Study Overview

• Status: Terminated
• Conditions: Post-Traumatic Stress Disorder
• Intervention / Treatment: Behavioral: cognitive training; Behavioral: video game

Detailed Description

1. Objective(s) Post Traumatic Stress Disorder (PTSD) has been established as relatively common in a significant number of OEF/OIF Veterans (Vasterling & Brailey, 2005; Hoge et al., 2008). Attention deficits, which are prominent in PTSD, may be due to difficulty sustaining attention over time and encoding or getting information into storage which leads to reduced attention and memory scores on neuropsychological measures. Disruptions in attention are common in many types of neurological and psychiatric disorders. Deficient attentional skills may negatively affect cognitive performance in other areas (e.g., memory, planning) and thereby reduce effectiveness navigating daily life tasks as well as decrease the Veteran's life satisfaction after returning home.

   The origin of the attention impairment may be amenable to sophisticated remediation approaches using a "bottom up, neuroscience based" visual training program (i.e., Posit Science, Inc. cognitive rehabilitation program), which has been successful in improving neurocognitive function in healthy older adults (e.g., Mahncke et al., 2006) and patients with Schizophrenia (e.g., Bell at al., 2008). By engaging Veterans with PTSD in targeted remediation, it is expected that both behavioral (seen in neuropsychological test gains) and neural activity (e.g., BOLD response through fMRI) will reflect the improvement and this may be linked to improved outcomes in daily functioning.

2. Research Design: The longitudinal research design for this project will be a three factor mixed factorial design with between subject factors of PTSD (+PTSD x -PTSD) and cognitive remediation [cogrem x video game] and within subject variable of time tested (pre-training, post-training, 3 month follow up). There will be 40 participants enrolled in the following groups of 10 each: 1) +PTSD/cogrem, 2) +PTSD/video game, 3) -PTSD/cogrem, and 4) -PTSD/video game. PTSD status is determined by a diagnosis of PTSD identified through a clinical interview for DSM-IV diagnostic criteria for PTSD. The active treatment is cognitive training. Veterans in this group will receive the Posit Science (Mahncke et al., 2006) visual cognitive remediation paradigm of 40 hours of training. The control treatment is a video game designed by Nintendo for the DS handheld system, which intended to improve mental functioning called Brain Age (Nintendo, Inc.) which will be played for 40 hours. Groups will be compared on the difference scores for neuropsychological, neurobehavioral and neuroimaging data to see if there is a benefit in cognitive training and if that benefit is greater in the group with PTSD.
3. Methodology: Forty outpatient Veterans will be enrolled. All individuals will receive a neurobehavioral interview, neuropsychological testing and neuroimaging at the baseline visit, post training and at follow-up visits. After the baseline visit, each volunteer will be randomized to one of two conditions.
4. Findings: This is a new study and there are no findings to date.
5. Clinical Relationships: This study will examine the effects of a standard cognitive rehabilitation program with OEF/OIF veterans who have cognitive deficits due to PTSD.
6. This project will impact veterans' healthcare by identifying cognitive problems in PTSD and will test the ability of a rehabilitation program to remediate those problems.

• Study Type: Interventional
• Enrollment (Anticipated): 40
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Connecticut
    • West Haven, Connecticut, United States, 06516
      • VA Connecticut Healthcare System West Haven Campus, West Haven, CT

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• OEF/OIF Veteran,
• meets DSM-IV criteria for PTSD,
• control group does not meet criteria for PTSD

Exclusion Criteria:

• prior history of significant head injury (LOC > 30 minutes) or other neurological disorder (e.g., stroke, seizure, multiple sclerosis), learning disability or confirmed diagnosis of ADHD,
• contraindication to MR imaging, failed malingering tests during testing, or a history of severe mental illness (i.e., Schizophrenia, Bipolar Disorder)

• individuals will be excluded if in the 30 days prior to the initial interview if they:

  • do not have stable housing (i.e., staying in same residence),
  • have medication changes or have had a psychiatric hospitalization,
• participants who meet DSM-IV criteria for substance dependence will be excluded from the study,
• individuals will also receive urine toxicology and Breathalyzer testing as the first procedure on the evaluation day (pre and post treatment and at 3 month follow up); participants who test positive for alcohol or recent substance use (e.g., methamphetamine) or report significant levels of drug or alcohol use if they are unable to abstain from substance use at three consecutive visits
• veterans who are currently engaged in therapy treatment for PTSD

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Arm 1; A cognitive training program (Posit Science) or an active control (video game) will be implemented for at least 3-4 hours a week for 40 training units.	Behavioral: cognitive training; A cognitive training program (Posit Science) or an active control (video game) will be implemented for at least 3-4 hours a week for 40 training units/hours.
Active Comparator: Arm 2; A computer game control condition will be implemented for 3-4 training exercises a week for 40 hours.	Behavioral: video game; An active control condition (computer game without increasing difficulty) will be implemented for at least 3-4 hours a week for 40 hours.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
neuropsychological test data	post-training and 3 month follow up

Secondary Outcome Measures

Outcome Measure	Time Frame
MRI data	post-training and 3 month follow up

Collaborators and Investigators

• Sponsor: US Department of Veterans Affairs
• Investigators: Principal Investigator: Kristen Wrocklage, PhD, VA Connecticut Healthcare System West Haven Campus, West Haven, CT

Study record dates

Study Major Dates

• Study Start: May 1, 2010
• Primary Completion (Actual): December 1, 2011
• Study Completion (Actual): December 1, 2011

Study Registration Dates

• First Submitted: June 22, 2009
• First Submitted That Met QC Criteria: June 24, 2009
• First Posted (Estimate): June 26, 2009

Study Record Updates

• Last Update Posted (Estimate): December 10, 2014
• Last Update Submitted That Met QC Criteria: December 9, 2014
• Last Verified: December 1, 2014

More Information

Terms related to this study

• Keywords: PTSD; rehabilitation
• Additional Relevant MeSH Terms: Mental Disorders; Trauma and Stressor Related Disorders; Stress Disorders, Traumatic; Stress Disorders, Post-Traumatic
• Other Study ID Numbers: B7009-M (Other Grant/Funding Number: VA RR&D)