NCT01414023

Brief Summary

This experiment will examine if the use of computerized tasks that train individuals to control their attention more effectively will predict individual differences in obsessive-compulsive symptoms, rumination and BDNF change. After giving consent, filling out self-report forms, and giving blood for the BDNF test, 80 participants will be randomized to Cognitive Control Training (CCT) or Peripheral Vision Task (PVT) (described below) which will be administered three times over a two week period. At the third visit, participants will also complete an anagram task and repeat the blood draw for BDNF testing. The investigators hypothesize that computerized tasks that train individuals to control their attention more effectively will reduce Obsessive Compulsive (OC) symptoms. Additionally, individuals training in CCT will show increased ability to disengage from unattainable goals as assessed by responses to an unsolvable anagram task. Finally, individuals training in CCT will show a greater increase in BDNF levels as compared to individuals training in PVT.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2011

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2011

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

August 9, 2011

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 11, 2011

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2012

Completed
Last Updated

May 18, 2020

Status Verified

May 1, 2020

Enrollment Period

1 year

First QC Date

August 9, 2011

Last Update Submit

May 14, 2020

Conditions

Keywords

High OCI-R scores

Outcome Measures

Primary Outcomes (1)

  • OCI-R scores

    3 times over a two week period

    up to two weeks

Secondary Outcomes (1)

  • BDNF serum levels

    up to two weeks

Study Arms (2)

CCT

EXPERIMENTAL

Cognitive Control Training - Pace Auditory Serial Addition Task (PASAT;(Gronwall, 1977): A computer version of the PASAT will be used to measure sustained attention and working memory. Participants are asked to add serially presented numbers. Attention Control Intervention (Wells, 2000): This task involves training individuals to attend differentially to multiple auditory sources (e.g., by counting tones, discriminating the location of tones, and moving their attention between auditory sources for a prolonged period).

Behavioral: Cognitive Control Training

PVT

PLACEBO COMPARATOR

Peripheral Vision Task (PVT; C. Moore, personal communication): This task serves as a non-active control condition which does not target the brain regions influenced by the Wells and PASAT tasks. Participants focus on the placement of dots on a computer screen in this task while listening to a tone.

Behavioral: Peripheral Vision Task

Interventions

Pace Auditory Serial Addition Task (PASAT;(Gronwall, 1977): A computer version of the PASAT will be used to measure sustained attention and working memory. Participants are asked to add serially presented numbers. Attention Control Intervention (Wells, 2000): This task involves training individuals to attend differentially to multiple auditory sources (e.g., by counting tones, discriminating the location of tones, and moving their attention between auditory sources for a prolonged period).

CCT

Peripheral Vision Task (PVT; C. Moore, personal communication): This task serves as a non-active control condition which does not target the brain regions influenced by the Wells and PASAT tasks. Participants focus on the placement of dots on a computer screen in this task while listening to a tone.

PVT

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults ages 18-65 years
  • OCI-R total score ≥ 16
  • Ability to read and provide informed consent.
  • Familiarity with a computer keyboard and mouse.

You may not qualify if:

  • BDI-II suicidality score of \> 1

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Boston University

Boston, Massachusetts, 02215, United States

Location

MeSH Terms

Conditions

Obsessive-Compulsive Disorder

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 9, 2011

First Posted

August 11, 2011

Study Start

July 1, 2011

Primary Completion

July 1, 2012

Study Completion

July 1, 2012

Last Updated

May 18, 2020

Record last verified: 2020-05

Locations