HyVE: Hybrid Vibro-Electrotactile Stimulation for Sensory Feedback and Substitution in Rehabilitation.

HyVE: Hybrid Vibro-Electrotactile Stimulation for Sensory Feedback and Substitution in Rehabilitation.

IEEE Trans Neural Syst Rehabil Eng. 2013 Jun 13;
D’Alonzo M, Dosen S, Cipriani C, Farina D

Electro- or vibro-tactile stimulations were used in the past to provide sensory information in many different applications ranging from human manual control to prosthetics. The two modalities were used separately in the past, and we hypothesized that a hybrid vibro-electrotactile (HyVE) stimulation could provide two afferent streams that are independently perceived by a subject, although delivered in parallel and through the same skin location. We conducted psychophysical experiments where healthy subjects were asked to recognize the intensities of electro- and vibro-tactile stimuli during hybrid and single modality stimulations. The results demonstrated that the subjects were able to discriminate the features of the two modalities within the hybrid stimulus, and that the cross-modality interaction was limited enough to allow better transmission of discrete information (messages) using hybrid versus single modality coding. The percentages of successful recognitions (mean ± standard deviation) for 9 messages were 56±11% and 72±8% for two hybrid coding schemes, compared to 29±7% for vibrotactile and 44±4% for electrotactile coding. The HyVE can be therefore an attractive solution in numerous application for providing sensory feedback in prostheses and rehabilitation, and it could be used to increase the resolution of a single variable or to simultaneously feedback two different variables. HubMed – rehab


Association between behavioral and psychological symptoms and psychotropic drug use among old people with cognitive impairment living in geriatric care settings.

Int Psychogeriatr. 2013 Jun 20; 1-9
Gustafsson M, Sandman PO, Karlsson S, Gustafson Y, Lövheim H

ABSTRACT Background: Behavioral and psychological symptoms are common among cognitively impaired individuals and psychotropic drugs are widely used for their treatment. The aim of this study was to describe the prevalence and associated factors of psychotropic and anti-dementia drug use among old people with cognitive impairment living in geriatric care settings. Methods: The study comprised 2,019 cognitively impaired people living in geriatric care units in the county of Västerbotten, Sweden. Data concerning psychotropic and anti-dementia drug use, function in activities of daily living, cognitive function, and prevalence of behavioral and psychological symptoms were collected, using the Multi-Dimensional Dementia Assessment Scale. Results: Of the study population, 1,442 individuals (71%) were prescribed at least one psychotropic drug (antidepressants (49%), anxiolytics, hypnotics, and sedatives (36%), antipsychotics (25%)). Furthermore, 363 individuals (18%) received anti-dementia drugs. Associations between various behavioral and psychological symptoms were found for all psychotropic drug classes and anti-dementia drugs. Verbally disruptive/attention-seeking behavior was associated with all psychotropic drugs. Use of antipsychotics was associated with several behavioral and psychological symptoms, including aggressive behavior. Conclusion: The associations between behavioral and psychological symptoms and psychotropic drug use found in this study indicate that these drugs are prescribed to treat behavioral and psychological symptoms among cognitively impaired individuals despite limited evidence of their efficacy. Given the significant risk of adverse effects among old people with cognitive impairment, it is important to ensure that any medication used is both appropriate and safe. HubMed – rehab


Service use following attendance at an emergency department with an head injury: a 6-month survey.

Emerg Med J. 2013 Jun 19;
Seeley H, Maimaris C, Allanson J, Pickard J, Hutchinson P

OBJECTIVES: To survey the attendance of patients presenting with a head injury (HI) at a UK emergency department (ED), identifying numbers, types of service and referral routes; to survey subsequent service use and to highlight the challenges in service planning and identifying which patients may potentially benefit from follow-up/rehabilitation input. DESIGN: A retrospective population-based case series study using multiple prospective and retrospective data sources. METHODS: Adults from the National Health Service (NHS) Cambridgeshire catchment area attending an ED over a 6-month period with a HI were identified from detailed ED reports, and any service use within the hospital after injury was tracked using a number of data sources. RESULTS: 1036 patients presented on 1081 occasions with a HI during the 6 months. Of the 1081 HIs, 979 (91%) were mild (Glasgow Coma Scale (GCS) score 13-15), 70 (6%) were moderate (GCS score 9-12), and 32 (3%) were severe (GCS score <9). A number of types of referral routes and systems were identified and analysed: 873 (81%) patients were discharged directly from ED, with four offered HI-specific follow-up. Of 208 admissions, 27 (2%) were to neurosurgical care, and 35 (3%) patients were offered HI-specific follow-up, 24 of these being in a specialist neurotrauma clinic. Follow-up started between 1 and 18 months after injury. At 24 months after injury, follow-up for 10 of these was still ongoing. CONCLUSIONS: These study findings highlight the difficulties in identifying patients who would benefit from follow-up, in particular after mild HI. Our study findings will form the basis of a long-term follow-up study. HubMed – rehab