A biopsychosocial analysis of sexuality in adult males and their partners after severe traumatic brain injury.

PURPOSE: The primary aim of this study was to investigate changes in sexual function in males and their partners following severe TBI. Secondary aims of the study were to explore the relationship between selected sociodemographic, emotional/behavioural and sexual function variables. METHODS: Twenty males with a history of severe TBI and 20 healthy controls (HC) and their respective partners were recruited. Sexual life was assessed with the Sexuality Evaluation Schedule Assessment Monitoring (SESAMO). Study participant level of self-awareness was evaluated by the Awareness Questionnaire, whereas their neuropsychiatric and psychopathological statuses were assessed by the NPI, the HAM-D and STAI. RESULTS: A reduction in desire and frequency of sexual intercourse was found in all survivors and their partners. Moreover, higher levels of survivor depression correlated with lower partner harmony. Survivor feelings toward their partners gradually decreased over time, as did the ability to make decisions as a couple. The comparison with HC couples revealed that both survivors' and their partners' exaggerated the extent of disease. CONCLUSIONS: After male severe TBI, men appear to have a reduced quality of their sexual life, which may be more a result of relationship dysfunction than a sexual performance deficit related to their brain injury history.

Selective Cognitive Dysfunction Is Related to a Specific Pattern of Cerebral Damage in Persons With Severe Traumatic Brain Injury.

OBJECTIVE: Cognitive dysfunction is a common sequela of traumatic brain injury (TBI); indeed, patients show a heterogeneous pattern of cognitive deficits. This study was aimed at investigating whether patients who show selective cognitive dysfunction after TBI present a selective pattern of cerebral damage. SETTING: Post-Coma Unit, IRCCS Santa Lucia Foundation, Rome, Italy. PARTICIPANTS: We collected data from 8 TBI patients with episodic memory disorder and without executive deficits, 7 patients with executive function impairment and preserved episodic memory capacities, and 16 healthy controls. DESIGN: We used 2 complementary analyses: (1) an exploratory and qualitative approach in which we investigated the distribution of lesions in the TBI groups, and (2) a hypothesis-driven and quantitative approach in which we calculated the volume of hippocampi of individuals in the TBI and control groups. MAIN MEASURES: Neuropsychological scores and hippocampal volumes. RESULTS: We found that patients with TBI and executive functions impairment presented focal lesions involving the frontal lobes, whereas patients with TBI and episodic memory disorders showed atrophic changes of the mesial temporal structure (hippocampus). CONCLUSION: The complexity of TBI is due to several heterogeneous factors. Indeed, studying patients with TBI and selective cognitive dysfunction should lead to a better understanding of correlations with specific brain impairment and damage, better follow-up of long-term outcome scenarios, and better planning of selective and focused rehabilitation programs.

Effect of ethylic alcohol on attentive functions involved in driving abilities.

The burden of injuries due to drunk drivers has been estimated only indirectly. Indeed, alcohol is considered one of the most important contributing cause of car crash injuries and its effect on cognitive functions needs to be better elucidated. Aims of the study were i) to examine the effect of alcohol on attentive abilities involved while driving, and ii) to investigate whether Italian law limits for safe driving are sufficiently accurate to prevent risky behaviours and car crash risk while driving. We conducted a cross-over study at IRCCS Fondazione Santa Lucia Rehabilitation Hospital in Rome. Thirty-two healthy subjects were enrolled in this experiment. Participants were submitted to an attentive test battery assessing attention before taking Ethylic Alcohol (EA-) and after taking EA (EA+). In the EA+ condition subjects drank enough wine until the blood alcohol concentration, measured by means of Breath Analyzer, was equal to or higher than 0.5 g/l. Data analysis revealed that after alcohol assumption, tonic and phasic alertness, selective, divided attention and vigilance were significantly impaired when BAC level was at least 0.5 g/l. These data reveal that alcohol has a negative effect on attentive functions which are primarily involved in driving skills and that Italian law limits are adequate to prevent risky driving behaviour.

Low self-awareness of individuals with severe traumatic brain injury can lead to reduced ability to take another person's perspective.

Aims of this study were (i) to verify whether a deficit or a lack of self-awareness can lead to difficulties in assuming another person's perspective after a severe traumatic brain injury (TBI); (ii) to verify whether perspective-taking deficits emerge more from performance-based tasks than self-reports; and (iii) to evaluate the possible relationships between perspective-taking difficulties and some clinical, neuropsychological, neuropsychiatric, and neuroimaging variables. The Interpersonal Reactivity Index, Empathy Quotient, first-order false-belief, and faux pas written stories were administered to 28 patients with severe TBI and 28 healthy controls. The Awareness Questionnaire was also administered to TBI patients and their caregivers. Patients were split into 2 groups (impaired self-awareness vs adequate self-awareness) on the basis of the discrepancy Awareness Questionnaire score. Both TBI groups obtained lower scores than healthy controls on the Fantasy subscale of the Interpersonal Reactivity Index, the reality question of the false-belief stories, and the memory questions of the faux pas test. Only impaired self-awareness patients tended to obtain lower scores in first-order false-belief detection. Impaired self-awareness patients also performed significantly worse than both healthy controls and adequate self-awareness patients on the faux pas tasks. The analysis suggests a causal relationship between low self-awareness and perspective-taking difficulties in this population of patients.

Return to driving after severe traumatic brain injury: increased risk of traffic accidents and personal responsibility.

OBJECTIVE: To determine the frequency of road traffic accidents among individuals who start or resume driving after severe traumatic brain injury (TBI) and to investigate their responsibility for these accidents. DESIGN: Observational/retrospective study. PARTICIPANTS: Sixty adults with severe TBI and their caregivers. MEASURES: Return to Driving Questionnaire and Glasgow Outcome Scale. RESULTS: Thirty of the 60 participants started to drive or resumed driving after TBI. Nineteen (63%) of them were involved in traffic accidents, with personal responsibility in 26 of 36 after return to driving. Participants caused a significantly higher number of accidents after TBI than before. CONCLUSIONS: The ability to drive is frequently compromised after severe TBI. Specific rehabilitation of this complex activity should be a main goal of social reintegration programs in this population.

Post-traumatic Stress Disorder after Severe Traumatic Brain Injury: A Systematic Review.

OBJECTIVE: The review aimed to summarize the existing knowledge base regarding post-traumatic stress disorder after severe traumatic brain injury (TBI) and try to guide future research. METHOD: Web of Science, Scopus, and PubMed databases were used to identify original studies that explored the relationship between severe TBI and post-traumatic stress disorder. RESULTS: A total of 13 studies were included in the review. They have been examined in terms of potentially compatible and incompatible mechanisms, as well as of possible confounding factors in relation to the diagnosis of post-traumatic stress disorder after severe TBI. CONCLUSION: Only a few studies in the literature have addressed the present topic; therefore, the prevalence of post-traumatic stress disorder in patients with severe TBI still needs to be further investigated. In particular, future studies should be conducted only in severe TBI populations, considering their premorbid personality characteristics and their reactivity alteration. They should also obtain an accurate and appropriate assessment of post-traumatic stress disorder with clinical interviews as well as clarifying the role of post-traumatic amnesia in this population by incorporating control groups of patients.

Neurorehabilitation of severe acquired brain injury in the time of COVID-19: impact of the absence of caregivers.

INTRODUCTION: During the COVID-19 pandemic, several restrictions were imposed to limit the circulation of the infection within communities. Hospitals denied access to the family and friends of inpatients, and thus to caregivers. This observational study evaluated the impact of the physical absence of caregivers during the lockdown period due to the COVID-19 emergency on the rehabilitation of inpatients with severe acquired brain injury (sABI). METHODS: The functional outcome at discharge was measured in 25 inpatients with sABI through the Disability Rating Scale (DRS), Glasgow Outcome Scale (GOS), and Levels of Cognitive Functioning scale (LCF) after neuropsychological rehabilitation in an Adult Inpatient Neurorehabilitation Unit for Patients with sABI. Fourteen patients were directly assisted by their informal caregivers physically present in the neurorehabilitation ward. Eleven patients were indirectly supported via remote connection because during the lockdown period (from March to July 2020) caregivers could not be admitted to the rehabilitation hospital. The Caregiving Impact on Neuro-Rehabilitation Scale (CINRS) was also used to evaluate both the change since the admission and the impact of the caregiver from the perspective of the cognitive therapist. Demographic characteristics, time since injury, injury severity (duration of impaired consciousness measured by the time to follow commands), level of functioning at the beginning of the rehabilitation, and duration of the rehabilitation treatment were comparable between the groups. RESULTS: Both groups improved after the treatment; however, the improvement was consistently greater in the group directly assisted by the caregivers. The results showed that although the caregivers ensured their virtual presence at distance, their physical absence played a role in hindering the functional outcome of the patients. CONCLUSIONS: The role of the caregiver of patients with sABI is underlined in being not only a person handing out generic aid, cares, and affection, but also an integral part of the rehabilitation process.

Reduced Priming Effect for Visual-Spatial Perspective Taking in Patients With Severe Acquired Brain Injury.

OBJECTIVE: Social cognition can be impaired after a severe acquired brain injury (sABI), but mechanisms potentially underlying these difficulties remain to be clarified. This study aimed at investigating perspective taking ability in individuals with sABI. METHOD: Twenty individuals with sABI and 20 healthy controls (HCs) have been enrolled in this case-control study. All participants were submitted to an experimental visual-spatial priming memory procedure and a self-report assessment of perspective taking (i.e., the Interpersonal Reactivity Index [IRI]). Individuals with sABI were submitted to neuropsychological tests to assess executive subcomponents, working memory, and visual attention. RESULTS: The analysis on self-report scales data documents a significant between groups difference in the IRI-Fantasy subscale, with HCs showing a higher tendency to imaginatively transpose oneself into fictional situations than individuals with sABI. Analysis of performance on the experimental procedure revealed the priming effect in HCs but not in sABI individuals. Moreover, individuals with sABI performed significantly poorer than HCs on the indices of the experimental procedure. CONCLUSIONS: Our data preliminarily demonstrated that visual-spatial perspective taking is reduced after sABI. Findings above could give some clues for the rehabilitative intervention in sABI and suggest the possible application of the procedure here used in assessing perspective taking after sABI.

Self-Awareness Multilevel Assessment Scale (SAMAS): psychometric analysis of inter-rater reliability.

BACKGROUND: Severe acquired brain injury (sABI) frequently causes impairment in self-awareness (ISA), leading to reduced patients' compliance to treatment, worse functional outcome, and high caregiver distress. Self-awareness (SA) is a multilevel and complex function that, as such, requires a specific and effective assessment. To date, many tools are available to evaluate the declarative, but not emergent and anticipatory levels of awareness, therefore the Self-Awareness Multilevel Assessment Scale (SAMAS) was recently proposed. The new tool proved to be useful to assess SA at different levels across all domains of functioning (motor, cognitive, psycho-behavioural, etc.) because it measures not only the declarative SA, but also emergent and anticipatory levels of SA, thus overcoming some important limits of other current assessment methods. AIM: This study evaluated the inter-rater reliability (IRR) of the SAMAS. METHODS: Four professionals blind to each other evaluated 12 patients with sABI. Each patient was rated by two professionals. RESULTS: Inter-rater reliability was moderate-to-excellent, adding evidence in support of the use of SAMAS to specifically diagnose ISA after sABI. CONCLUSIONS: The SAMAS can help to better address neurorehabilitation, as it allows assessing ISA as early as possible, at all possible levels of awareness and functional domains.

Neuropsychiatric disorders in persons with severe traumatic brain injury: prevalence, phenomenology, and relationship with demographic, clinical, and functional features.

OBJECTIVE: To characterize neuropsychiatric symptoms in a large group of individuals with severe traumatic brain injury (TBI) and to correlate these symptoms with demographic, clinical, and functional features. METHODS: The Neuropsychiatric Inventory (NPI), a frequently used scale to assess behavioral, emotional, and motivational disorders in persons with neurological diseases, was administered to a sample of 120 persons with severe TBI. Controls were 77 healthy subjects. RESULTS: A wide range of neuropsychiatric symptoms was found in the population with severe TBI: apathy (42%), irritability (37%), dysphoria/depressed mood (29%), disinhibition (28%), eating disturbances (27%), and agitation (24%). A clear relationship was also found with other demographic and clinical variables. CONCLUSION: Neuropsychiatric disorders constitute an important part of the comorbidity in populations with severe TBI. Our study emphasizes the importance of integrating an overall assessment of cognitive disturbances with a specific neuropsychiatric evaluation to improve clinical understanding and treatment of persons with TBI.

Brain Neurodegeneration in the Chronic Stage of the Survivors from Severe Non-Missile Traumatic Brain Injury: A Voxel-Based Morphometry Within-Group at One versus Nine Years from a Head Injury.

The long-term time course of neuropathological changes occurring in survivors from severe traumatic brain injury (TBI) remains uncertain. We investigated the brain morphometry and memory performance modifications within the same group of severe non-missile traumatic brain injury patients (nmTBI) after about ∼one year and at ∼ nine years from injury. Brain magnetic resonance imaging (MRI) measurements were performed with voxel-based morphometry (VBM) to determine specific changes in the gray matter (GM) and white matter (WM) and the overall gray matter volume modifications (GMV) and white matter volume modifications (WMV). Contemporarily, memory-tests were also administered. In comparison with healthy control subjects (HC), those with nmTBI showed a significant change and volume reduction in the GM and WM and also in the GMV and WMV after ∼one year; conversely, ∼nine years after injury, neurodegenerative changes spared the GM and GMV, but a prominent loss was detected in WMV and in WM sites, such as the superior longitudinal fasciculi, the body of the corpus callosum, the optic radiation, and the uncinate fasciculus. Memory performance at ∼one year in comparison with ∼nine years was stable with a subtle but significant trend toward recovery. These data demonstrate that patients with nmTBI undergo neurodegenerative processes during the chronic stage affecting mainly the cerebral WM rather than GM. Despite these anatomical brain parenchyma losses, memory performance tends to be stable or even slightly recovered. These results suggest possible correlations between progressive demyelinization and/or neuropsychiatric changes other than memory performance, and support possible treatments to prevent long-term WM degeneration of the examined nmTBI.

Metacognitive unawareness correlates with executive function impairment after severe traumatic brain injury.

UNLABELLED: The aim of this study was to evaluate clinical, neuropsychological, and functional differences between severe traumatic brain injury (TBI) outpatients with good and/or heightened metacognitive self-awareness (SA) and those with impaired metacognitive SA, assessed by the Patient Competency Rating Scale (PCRS). Fifty-two outpatients were recruited from a neurorehabilitation hospital based on the following inclusion criteria: 1) age > or = 15 years; 2) diagnosis of severe TBI; 3) availability of neuroimaging data; 4) post-traumatic amnesia resolution; 5) provision of informed consent. MEASURES: A neuropsychological battery was used to evaluate attention, memory and executive functions. SA was assessed by the PCRS, which was administered to patients and close family members. Patients were divided into two groups representing those with and without SA. Patients with poor SA had more problems than those with good SA in some components of the executive system, as indicated by the high percentage of perseverative errors and responses they made on the Wisconsin Card Sorting Test. Moreover, a decrease in metacognitive SA correlated significantly with time to follow commands (TFC). This study suggests the importance of integrating an overall assessment of cognitive functions with a specific evaluation of SA to treat self-awareness and executive functions together during the rehabilitation process.

3 Tesla is twice as sensitive as 1.5 Tesla magnetic resonance imaging in the assessment of diffuse axonal injury in traumatic brain injury patients.

Diffuse axonal injury (DAI), associated with deafferentation and functional rearrangement, probably plays a role in the chronic phase of traumatic brain injury (TBI). DAI with a haemorrhagic component can be quantified using magnetic resonance imaging (MRI) thanks to the iron-based susceptibility effect of haemosiderin, which increases with magnetic field strength. The aim of this work was to compare conventional 1.5 Tesla and 3 Tesla MRI in the assessment of DAI in TBI patients. Eighteen TBI patients were submitted, in random order, to a 1.5T and a 3T MRI examination using standard gradient echo sequences. Both scans were always performed on the same day. DAI lesions with a haemorrhagic component were manually segmented and classified by anatomical location. The Wilcoxon and ANOVA tests were used for statistical analysis, significance being set at p<0.05. The results of this study showed that 3T MRI is almost twice as sensitive as 1.5T MRI in assessing DAI in terms of lesion number and volume. Differences between the two scanners were not significant in the posterior cranial fossa. High-field MRI enhances the assessment of DAI and may help to increase understanding of the mechanisms underlying subacute and chronic clinical, cognitive and behavioural changes in TBI patients.

Self-Awareness Moderates the Association Between Executive Dysfunction and Functional Independence After Acquired Brain Injury.

OBJECTIVE: Impaired self-awareness (SA) is a common symptom after suffering acquired brain injury (ABI) which interferes with patient's rehabilitation and their functional independence. SA is associated with executive function and declarative memory, two cognitive functions that are related to participants' daily living functionality. Through this observational study, we aim to explore whether SA may play a moderator role in the relation between these two cognitive processes and functional independence. METHOD: A sample of 69 participants with ABI completed a neuropsychological assessment focused on executive function and declarative memory which also included a measure of SA and functional independence. Two separated linear models were performed including functional independence, SA, and two neuropsychological factors (declarative memory and executive function) derived from a previous principal component analysis. RESULTS: Moderation analysis show a significant interaction between SA and executive function, reflecting an association between lower executive functioning and poorer functional outcome, only in participants with low levels of SA. Notwithstanding, declarative memory do not show a significant interaction with SA, even though higher declarative memory scores were associated with better functional independence. CONCLUSIONS: SA seems to play a moderator effect between executive function, but not declarative memory, and functional independence. Accordingly, participants with executive deficits and low levels of SA might benefit from receiving specific SA interventions in the first instance, which would in turn positively impact on their functional independence.

Caregivers' engagement during in-hospital care of sABI's patients: Evaluation of informal co-production from the health providers' perspective.

One of the challenges of providing healthcare services is to enhance its value (for patients, staff and the service) by integrating the informal caregivers into the care process, both concretely managing their patient's health conditions and treatment (co-executing) and participating in the whole healthcare process (co-planning). This study aims at exploring the co-production contribution to the healthcare process, analysing whether and how it is related to higher caregivers' satisfaction with service care and reduced staff burnout, in the eyes of the staff. It also investigated two possible factors supporting caregivers in their role of co-producers, namely relationship among staff and informal caregivers related to knowledge sharing (i.e. an ability determinant supporting co-production) and related to role social conflict (i.e. a willingness determinant reducing co-production). Results of a structural equation model on a sample of 119 healthcare providers employed by neurorehabilitation centers in Italy with severe acquired brain injury confirmed that knowledge sharing positively related with caregivers' co-executing and co-planning. Also, social role conflict was negatively related with co-executing but positively with co-planning. Furthermore, co-planning resulted in being unrelated to both outcomes, whereas co-executing was associated with caregivers' satisfaction, as measured by staff perceptions. Overall, our data provided initial empirical evidence supporting the ability of the determinant's contribution in allowing informal caregivers to assume an active role in both co-production domains. Furthermore, as expected, the role of conflict willingness determinant was found to be a hindering factor for co-executing but, conversely, a trigger for co-planning. This result should be considered more carefully in future studies.

The Self-Awareness Multilevel Assessment Scale, a New Tool for the Assessment of Self-Awareness After Severe Acquired Brain Injury: Preliminary Findings.

Self-awareness (SA) is frequently impaired after severe acquired brain injury (sABI) and may lead to reduced subject's compliance to treatment, worse functional outcome, and high caregiver distress. Considering the multifaceted nature of SA, a specific and effective assessment is crucial to address treatment of impairment of SA (ISA). Many tools can currently assess ISA; however, they have some important limits. In the present study, we proposed the Self-Awareness Multilevel Assessment Scale (SAMAS), a new scale for assessment of SA at different levels (i.e., declarative, emergent, and anticipatory) across all domains of functioning. The SAMAS has been designed to be administered by the cognitive/behavioral therapist with the involvement of a patient's relative. Findings showed that the SAMAS allowed specifically assessing SA at a declarative level and on all possible functional domains. More interestingly, it seems also able to assess both emergent and anticipatory SA, thus overcoming some important limits of other current assessment methods. Our findings are consistent with a holistic perspective of the patient with sABI because thanks to the combined use of assessing tools, the SAMAS can provide an accurate diagnosis of ISA, thus better addressing the neurorehabilitation treatment and, accordingly, reducing the possible occurrence of its primary and secondary implications.

Post-traumatic headache: facts and doubts.

The International Classification of Headache Disorders does not separate the moderate from severe/very severe traumatic brain injury (TBI), since they are all defined by Glasgow coma scale (GCS) < 13. The distinction between the severe and very severe TBI (GCS < 8) should be made upon coma duration that in the latter may be longer than 15 days up to months in the case of vegetative state. Post-traumatic amnesia duration may double the coma duration itself. Therefore, the 3-month parameter proposed to define the occurrence or resolution of post-traumatic headache (PTH) appears inadequate. Following TBI, neuropathic pain, central pain, thalamic pain, combined pain are all possible and they call for proper pharmacological approaches. One more reason for having difficulties in obtaining information about headache in the early phase after regaining consciousness is the presence of concomitant medications that may affect pain perception. Post-traumatic stress disorder (PTSD) develops days or weeks after stress and tends to improve or disappear within 3 months after exposure; interestingly, this spontaneous timing resembles that of PTH. In our experience the number of TBI patients with PTH at 1-year follow-up is lower in those with longer coma duration and more severe TBI. Cognitive functioning evaluated after at least 12 months from TBI, showed mild or no impairment in these patients with severe TBI and PTH, whereas they have psychopathological changes, namely anxiety and depression. The majority of patients with PTH after severe/very severe TBI had skull fractures or dural lacerations and paroxystic EEG abnormalities. The combination of psychological changes (depression and anxiety) and organic features (skull fractures, dural lacerations, epileptic EEG abnormalities) in PTH may be inversely correlated with the severity of TBI, with prevalence of psychological disturbances in mild TBI and of organic lesions in severe TBI. On the other hand, only in severe TBI patients with good cognitive recovery the influence of the psychopathological disorders may play a role. In fact, the affective pain perception is probably related to the integrity of cognitive functions as in mild TBI and in severe TBI with good cognitive outcome.

Attention Deficits in Stroke Patients: The Role of Lesion Characteristics, Time from Stroke, and Concomitant Neuropsychological Deficits.

Attention impairments are frequent in stroke patients with important consequences on the rehabilitation outcomes and quality of life. The aim of the study was to perform a comprehensive assessment of selective and intensive attention processes in a large population of brain-damaged patients, evaluating the influence of the side and site of the brain lesion, the time from stroke, and the concomitant presence of aphasia or neglect. We assessed 204 patients with a first unilateral brain lesion and 42 healthy individuals with three subtests of the Test of Attentional Performance (TAP): Alertness, Go-No Go, and Divided Attention. 44.4% of patients had an impairment in both intensive and selective aspects of attention, 5.6% had deficits only in the intensive component, and 31.8% had deficits only in selective tasks. More than 80% of the patients fell below the cut-off point on at least one task. Patients with a right hemispheric lesion (RHL) were more impaired than patients with a left hemispheric lesion (LHL) especially in tonic and phasic alertness. Patients with total anterior infarcts (TACI) presented the worst profile compared to other stroke subtypes, with a difference between total and lacunar subtypes in the Alertness test, independent of the presence of warning. Patients in the chronic phase had shorter RTs than acute patients only in the Alertness test. In patients with LHL, the presence of aphasia was associated with a greater deficit in selective attention. In patients with RHL, the presence of unilateral neglect was associated with impaired alertness and selective attention. Attention deficits are common after a unilateral first stroke. In keeping with the hierarchical organization of attention functions, results confirm the important role of the right hemisphere for the intensive components of attention, also highlighting the involvement of left hemisphere functioning for the selective aspects, possibly indicating a role of its linguistic functions.

Executive function and metacognitive self-awareness after severe traumatic brain injury.

The objective of this study is to identify the clinical, neuropsychological, neuropsychiatric, and functional variables that correlate with metacognitive self-awareness (SA) in severe traumatic brain injury (TBI) outpatients and to assess the influence of the same variables on the sensory-motor, cognitive, and behavioral-affective indicators of SA. This cross-sectional observational study evaluated 37 outpatients from May 2006 to June 2007 in a neurorehabilitation hospital on the basis of the following inclusion criteria: (1) age 8); (3) posttraumatic amnesia (PTA) resolution; (4) capacity to undergo formal psychometric evaluation despite cognitive and sensory-motor deficits; (5) absence of aphasia; (6) availability of informed consent. A neuropsychological battery was used to evaluate attention, memory, and executive functions. SA was assessed by the awareness questionnaire (AQ), administered to both patients and relatives. Decreased metacognitive self-awareness is significantly correlated with increased problems in some components of executive system, even when the AQ subscales were considered separately. The significant correlation found between some components of executive system and metacognitive self-awareness confirmed the importance of addressing this issue to treat SA contextually in the rehabilitation of executive functions.

Self-awareness rehabilitation after Traumatic Brain Injury: A pilot study to compare two group therapies.

BACKGROUND AND PURPOSE: Deficits of self-awareness (SA) are very common after severe acquired brain injury (sABI), especially in traumatic brain injury (TBI), playing an important role in the efficacy of the rehabilitation process. This pilot study provides information regarding two structured group therapies for disorders of SA. METHODS: Nine patients with severe TBI were consecutively recruited and randomly assigned to one SA group therapy programme, according either to the model proposed by Ben-Yishay & Lakin (1989) (B&L Group), or by Sohlberg & Mateer (1989) (S&M Group). Neuropsychological tests and self-awareness questionnaires were administered before and after a 10 weeks group therapy. RESULTS: Results showed that both SA and neuropsychological functioning significantly improved in both groups. CONCLUSION: It is important to investigate and treat self-awareness, also to improve the outcome of neuropsychological disorders. The two group therapies proposed seem to be specific for impulsivity and emotional dyscontrol and for cognitive disorders.