NCT00305513

Brief Summary

Unilateral spatial neglect (USN) is believed to be a disorder of attention, characterized by impairment in the ability to perceive or respond to stimuli presented to the contralesional space, and which is not attributable to significant sensory or motor deficits. USN has serious consequences for rehabilitation and long term disabilities. Efforts have been made to clarify both the theoretical basis of this phenomenon and the rehabilitation methods that will be best in improving function. The purpose of this study is to try and contribute to both efforts by examining treatment effectiveness of two methods; one targeting general arousal (phasic alerting), and the other targeting increasing awareness to left side stimuli and habit changes. Functional neuroimaging methods (PET \[positron emission tomography\] and fMRI \[functional magnetic resonance imaging\]) have been applied to understand the functional anatomy of the brain during mental processes. Only a few attempts have been made to use functional neuroimaging in patients with neurological deficits such as USN, usually speculations are made based on findings with healthy participants to explain this disorder. This study's aim is to examine the functional reorganization of the attentional network in the brain of USN patients while performing visual tasks, by means of functional neuroimaging techniques, in light of specific rehabilitation techniques. Patients will be examined before and after 3 weeks of rehabilitation both using standardized neurobehavioral tests and PET imaging procedures.

Trial Health

55
Monitor

Trial Health Score

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

Enrollment
6

participants targeted

Target at below P25 for phase_2

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 21, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 22, 2006

Completed
Last Updated

June 3, 2010

Status Verified

March 1, 2006

First QC Date

March 21, 2006

Last Update Submit

June 2, 2010

Conditions

Keywords

right hemispheric CVAneglectphasic alert treatmentPET scanpatients post right hemispheric CVA (stroke)

Outcome Measures

Primary Outcomes (1)

  • This study's aim is to examine the functional reorganization of the attentional network in the brain of USN patients while performing visual tasks, by means of functional neuroimaging techniques, in light of specific rehabilitation techniques.

Secondary Outcomes (1)

  • The aim of this study is to try and contribute to both efforts by examining treatment effectiveness of two methods; one targeting general arousal (phasic alerting), and the other targeting increasing awareness to left side stimuli and habit changes.

Interventions

Eligibility Criteria

Age25 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • First time right hemispheric stroke (ischemic)
  • weeks post stroke incident
  • Ages 25 - 85
  • Right hand dominance
  • Minimum education of 6 years
  • The patients or their legal guardians have to give informed consent
  • Does not suffer from field cut deficit such as hemi-anopsia
  • Without other known neurological disorders (e.g., Parkinson's disease, aphasia)
  • Without severe systemic conditions (e.g., malignancies, AIDS, congestive heart failure, substance abuse)
  • Does not take additional medications that could affect the central nervous system
  • Without dementia
  • Without mental illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hadassah Medical Organization

Jerusalem, 91120, Israel

Location

MeSH Terms

Conditions

StrokePerceptual Disorders

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesNeurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Zeev Meiner, MD

    Hadassah Medical Organization

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

March 21, 2006

First Posted

March 22, 2006

Last Updated

June 3, 2010

Record last verified: 2006-03

Locations