Rehabilitation and management of executive function disorders.

Executive function disorders arise from damage to brain areas mediating complex aspects of human behavior, including self-regulation, social cognition, planning, and organization. These functions are especially necessary to everyday adaptation, independence, and productivity. Executive function disorders have multiple causes and are expressed through different patterns of cognitive, emotional, social, and behavioral impairment. Treatment approaches target specific symptoms, especially in attention, working memory, problem solving, social cognition, and self-control of behavior and emotions. Interventions draw upon behavioral training, compensatory processing techniques, self-awareness and metacognitive training, environmental aids, and medications along with family/caregiver education. The evidence base for identifying effective treatments is promising but remains limited with a need to broaden the focus on real world functional outcomes.

Rural Embedded Assistants for Community Health (REACH) network: first-person accounts in a community-university partnership.

Community research and action projects undertaken by community-university partnerships can lead to contextually appropriate and sustainable community improvements in rural and urban localities. However, effective implementation is challenging and prone to failure when poorly executed. The current paper seeks to inform rural community-university partnership practice through consideration of first-person accounts from five stakeholders in the Rural Embedded Assistants for Community Health (REACH) Network. The REACH Network is a unique community-university partnership aimed at improving rural health services by identifying, implementing, and evaluating innovative health interventions delivered by local caregivers. The first-person accounts provide an insider's perspective on the nature of collaboration. The unique perspectives identify three critical challenges facing the REACH Network: trust, coordination, and sustainability. Through consideration of the challenges, we identified several strategies for success. We hope readers can learn their own lessons when considering the details of our partnership's efforts to improve the delivery infrastructure for rural healthcare.

Declines in problem solving and anosognosia in amyotrophic lateral sclerosis: application of Guilford's structure of intellect theory.

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a multisystem disorder in which frontotemporal dysfunction without overt dementia is relatively common. Accordingly, there is need for a valid, brief, motor-free cognitive examination conducive to the ALS Clinic. OBJECTIVE: To validate a brief examination against a comprehensive neuropsychological battery to determine its sensitivity in identifying deficits in judgment and problem solving. We enrolled 13 individuals with intact brief examinations, 25 individuals with 1 or more impaired brief examination measures, and 18 healthy volunteers. Cognitive brief examination measures were classified into factors based on Guilford's Structure of Intellect theory. Cognitive anosognosia ratios were calculated to examine the degree of "unawareness of cognitive deficit." RESULTS: Statistically significant correlations were evidenced for each brief examination and comprehensive examination measure categorized by the same Guilford factor. In comparison to healthy controls, insight to level of cognitive abilities was significantly compromised for cognitively impaired ALS patients, with respect to their ratings of their responses to comprehension tasks assessing convergent and divergent production. CONCLUSIONS: Brief examination measures of verbal fluency and problem solving may serve as sensitive indicators of emerging difficulties in ALS patients with frontotemporal dysfunction. The prevalence of cognitive anosognosia warrants further attention because of its impact on treatment compliance, safety and quality of life for ALS patients with frontotemporal dysfunction.

Penn State screen exam for the detection of frontal and temporal dysfunction syndromes: application to ALS.

We improved standard treatment approaches by systematically addressing cognitive and behavioral change in association with frontal and temporal dysfunction in ALS. We evaluated the profile of inchange 198 ALS patients with a 20-minute screen exam. Significant deficiencies in letter fluency and reading comprehension (N=59) were found in 22.7% and 12.8% of limb onset and 36.4% and 20% of bulbar-onset patients. Deficiencies in abstract reasoning and judgment were found in 17%, and 29.5% of limb onset and 19.2%, and 46.7% of bulbar-onset patients. Significant behavioral change (N=89) was also reported in 2.4% of limb onset and 4.3% of bulbar-onset patients. Accommodations were provided from the time of initial detection of acquired deficiencies, with the goal of optimizing the patient's role in decision making throughout the process of treatment planning and implementation. This screen is of practical clinical value for assessment and intervention of deficiencies that affect treatment and quality of life.

A rapid screening battery to identify frontal dysfunction in patients with ALS.

We studied the relationship between verbal associative fluency, verbal abstract reasoning, and judgment in ALS using a 20-minute screening evaluation. Deficiencies in these measures were found in 20.0%, 18.6%, and 35.7% of patients with limb-onset ALS and in 37.5%, 25.0%, and 60.0% of patients with bulbar-onset ALS. This simple screen identifies deficits that affect discussions of treatment interventions and end-of-life issues.

Developmental outcomes after early prefrontal cortex damage.

The neuropsychological bases of cognitive, social, and moral development are minimally understood, with a seemingly wide chasm between developmental theories and brain maturation models. As one approach to bridging ideas in these areas, we review 10 cases of early prefrontal cortex damage from the clinical literature, highlighting overall clinical profiles and real life developmental outcomes. Based on these cases, there is preliminary evidence to support distinctive developmental differences after: (1) dorsolateral, (2) mesial, and (3) orbital-polar prefrontal lesions, for more profound impairments after bilateral damage, and possibly for recovery differences after very early vs. later childhood lesion onset. Further case and group studies are needed to confirm reliable effects of specific lesion locations, the influence of age of lesion onset, and related experiential and treatment variables in determining adult outcomes. Rather than a single underlying deficit associated with early prefrontal cortex damage, we interpret the findings to suggest that it is the altered integration and interplay of cognitive, emotional, self-regulatory, and executive/metacognitive deficits that contribute to diverse developmental frontal lobe syndromes. The findings support the fundamental importance of prefrontal cortex maturation in protracted cognitive, social-emotional, and moral development.