| MNB and TBI |
Using a group of patients with witnessed Loss of Consciousness-defined as time to follow commands (LOC)
and hospitalized (sometimes only for a short time, sometimes for longer) this graph was prepared. All
passed the validity check by failing no more than 1 of the 9 internal validity checks used in the MNB and
were not involved in litigation.
The Group labeled as Mild TBI 5 min LOC tested at 6 months or greater from time of injury and were not in
litigation are the Black line. This group had an Overall Test Battery Mean (OTBM) of 48. Each group is
identified by their LOC. The thing to be aware of is the pattern of scores. That is, the shape is the unique
identifier; each pattern of scores in similar except for the elevation. Therefore, assuming valid data and
adequate motivation, this is what a Traumatic Brain Injury (TBI) looks like on the MNB. The second graph
shows subjects with longer LOC.
Notice there is a dose response, the greater the LOC the lower the OTBM. Rohling, M.L., Meyers, J.E.,
Millis, S.R. (2003). Neuropsychological Impairment Following traumatic Brain Injury: A Dose-Response
Analysis. The Clinical Neuropsychologist, 17,289-302.
The clinician will also be aware that other brain injuries can have similar patterns. That is, an injury to the left
hemisphere (from what ever etiology) will have similarity if similar parts of the brain are injured. The MNB
contains data from more that 3000 subjects with various injuries for which the clinician can make
comparisons. The Manual and computer program for the MMB contains much more detailed descriptions of
various performance patterns.
hemisphere (from what ever etiology) will have similarity if similar parts of the brain are injured. The MNB
contains data from more that 3000 subjects with various injuries for which the clinician can make
comparisons. The Manual and computer program for the MMB contains much more detailed descriptions of
various performance patterns.
The following graph shows Normals (Black line, OTBM=50T), and non litigating persons who had history of
MVA and some brief confusion at the time of the accident, who passed the validity check as indicated above,
and were non litigants (Blue Line, OTBM=50T). The blue line group has a small number of subjects and is
only presented as a reference. You will notice that the Normals and Depressed (Green line, OTBM=48T)
and Chronic Pain (Red line, OTBM=46T) and Briefly Confused (Blue line) groups are not different form each
other in performance level. But each has a unique shape or pattern of results. In a study Meyers, J.E., &
Rohling, M.L. (2004). Validation of the Meyers Short Battery on Mild TBI patients. Archives of Clinical
Neuropsychology, 19, 637-651. We found no significant difference between Normals, Depressed and Chronic
pain groups vs Mild TBI (Less that an hour of LOC).
MVA and some brief confusion at the time of the accident, who passed the validity check as indicated above,
and were non litigants (Blue Line, OTBM=50T). The blue line group has a small number of subjects and is
only presented as a reference. You will notice that the Normals and Depressed (Green line, OTBM=48T)
and Chronic Pain (Red line, OTBM=46T) and Briefly Confused (Blue line) groups are not different form each
other in performance level. But each has a unique shape or pattern of results. In a study Meyers, J.E., &
Rohling, M.L. (2004). Validation of the Meyers Short Battery on Mild TBI patients. Archives of Clinical
Neuropsychology, 19, 637-651. We found no significant difference between Normals, Depressed and Chronic
pain groups vs Mild TBI (Less that an hour of LOC).
