The neuropsychological spectrum in traumatically head-injured persons

Abstract

The neuropsychological spectrum was investigated in a traumatically brain-damaged population. In this spectrum neuropsychological measures were regarded as the most biologically oriented, achievement measures as the most acquired skill-oriented, and intellectual measures as having an intermediate position. It was found that the achievement measures correlated the most highly with each other, the intellectual measures intercorrelated to a lesser extent, and the intercorrelations of neuropsychological measures yielded a zero-order median correlation. It was further found that the correlations of measures with those in other categories had the same ranking. It was inferred that brain damage alters the pattern of the neuropsychological spectrum because of disproportionate impairment in the biological direction of the spectrum.

The effects of environmental light-dark changes on experimental mild traumatic brain injury

“…Neurotrauma textbooks and large number of review articles also provide the definition, epidemiology, and clinical characteristics of MTBI (26,27). Neurotrauma textbooks and large number of review articles also provide the definition, epidemiology, and clinical characteristics of MTBI (26,27).…”

“…Considerable amount of work has been published on the management of severe head injuries. Neurotrauma textbooks and large number of review articles also provide the definition, epidemiology, and clinical characteristics of MTBI (26,27). However, there are only few studies discussing the management of MTBI.…”

“…Although there were differences in the mean power readings within the same group or between each group for beta frequency band (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) activities, none was statistically significant.…”

“…EEG global frequency band (0-30 Hz) was divided into four frequency bands: delta (0-4 Hz), theta (5-8 Hz), alpha (9)(10)(11)(12), and beta (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). EEG global frequency band (0-30 Hz) was divided into four frequency bands: delta (0-4 Hz), theta (5-8 Hz), alpha (9)(10)(11)(12), and beta (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30).…”

“…Offline EEG spectral analyses of two spectral parameters, including power and relative power, were performed on 60-s EEG epochs selected from each recorded session using Polyview signal analysis software (Grass Inc.). EEG global frequency band (0-30 Hz) was divided into four frequency bands: delta (0-4 Hz), theta (5-8 Hz), alpha (9-12 Hz), and beta (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). Calculations of EEG data were performed using fast-Fourier transformation with a resolution of 0.2 Hz.…”