Relationships between predisposing, precipitating, and perpetuating factors and executive functioning following mild traumatic brain injury.

Introduction: The aim of this study was to determine the sociodemographic and MTBI-related variables associated with executive functioning (EF).

Methods: Based on the theoretical model of Hou and colleagues, data on predisposing (age, education, premorbid IQ), precipitating (post-traumatic amnesia, loss of consciousness, presence of frontal lesions, post-accident time to evaluation) and perpetuating (anxious and depressive affects and post-concussive symptoms) factors were retrospectively collected from the medical records of 172 patients with MTBI. EF data based on the 3 processes included in Miyake's prediction model (2000) () were collected using respectively the Digit span task of the Weschler - 4 edition, the Trails A and B as well as the initiation time on the Tower of London- Drexel University.

Early reading comprehension and speed of reading impairments in individuals with uncomplicated and complicated mild traumatic brain injury.

Purpose: Several studies have investigated cognitive-communication disorders affecting oral expression skills following TBI but very few have dealt with reading comprehension abilities. The current study aims to measure reading comprehension and speed of reading in adults with uncomplicated and complicated mild traumatic brain injury (TBI) and to determine which demographic and TBI-related variables are predictive of their performance.

Method: The performances of three groups of participants were compared on the Chapman-Cook Speed of Reading Test (CCSRT).

Visual memory performance following mild traumatic brain injury and its relationship with intellectual functioning.

To compare the visual memory performance of uncomplicated and complicated mild TBI (mTBI) groups with that of a control group on the Rey Complex Figure Test (RCFT). We also aimed to explore the influence of factors such as age, gender, education, occupation, and intellectual functioning on visual memory in individuals with mTBI. The RCFT and the Wechsler Abbreviated Scale of Intelligence (WASI-II) were administered to 138 participants (90 uncomplicated mTBI patients, 19 complicated mTBI patients, and 29 controls).