Preliminary study of spatial cognition relating to nonimpact mTBI.

Sweeney and Johnson found that individuals that sustained mild traumatic brain injury without impact to the head (Nonimpact) demonstrated significantly slower performance than participants that suffered mild traumatic brain injury with impact to the head and normal controls on the Tactile Form Recognition Test (TFR). The current study explored the spatial cognition of three groups of Nonimpact participants classified as Deficient, Perfectly Normal, and Normal on the basis of TFR response time. Dependent variables consisted of neuropsychological tests requiring tactile- and/or visual-spatial perception and memory.

Scientific investigation of brain-behavior relationships using the Halstead-Reitan Battery.

The Reitan Society recognizes that adhering to the scientific method in conducting clinical neuropsychological evaluations is integral to neurodiagnostic accuracy. The role of science in clinical studies is discussed with specific reference to the scientific features of the Halstead-Reitan Test Battery (HRB). The diagnostic precision of the HRB across a wide range of neuropathological states is presented as a product of rigorous scientific interplay between empirical observation and the development of a conceptual model over more than five decades.