TY  - JOUR
A1  - Kübler, Andrea
A1  - Holz, Elisa M.
A1  - Riccio, Angela
A1  - Zickler, Claudia
A1  - Kaufmann, Tobias
A1  - Kleih, Sonja C.
A1  - Staiger-Sälzer, Pit
A1  - Desideri, Lorenzo
A1  - Hoogerwerf, Evert-Jan
A1  - Mattia, Donatella
T1  - The User-Centered Design as Novel Perspective for Evaluating the Usability of BCI-Controlled Applications
N2  - Albeit research on brain-computer interfaces (BCI) for controlling applications has expanded tremendously, we still face a translational gap when bringing BCI to end-users. To bridge this gap, we adapted the user-centered design (UCD) to BCI research and development which implies a shift from focusing on single aspects, such as accuracy and information transfer rate (ITR), to a more holistic user experience. The UCD implements an iterative process between end-users and developers based on a valid evaluation procedure. Within the UCD framework usability of a device can be defined with regard to its effectiveness, efficiency, and satisfaction. We operationalized these aspects to evaluate BCI-controlled applications. Effectiveness was regarded equivalent to accuracy of selections and efficiency to the amount of information transferred per time unit and the effort invested (workload). Satisfaction was assessed with questionnaires and visual-analogue scales. These metrics have been successfully applied to several BCI-controlled applications for communication and entertainment, which were evaluated by end-users with severe motor impairment. Results of four studies, involving a total of N = 19 end-users revealed: effectiveness was moderate to high; efficiency in terms of ITR was low to high and workload low to medium; depending on the match between user and technology, and type of application satisfaction was moderate to high. The here suggested evaluation metrics within the framework of the UCD proved to be an applicable and informative approach to evaluate BCI controlled applications, and end-users with severe impairment and in the locked-in state were able to participate in this process.
KW  - computer software
KW  - event related potentials
KW  - games
KW  - head
KW  - head injury
KW  - man-computer interface
KW  - prototypes
KW  - speech
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-111051
ER  - 
TY  - JOUR
A1  - Vollmuth, Christoph
A1  - Muljukov, Olga
A1  - Abu-Mugheisib, Mazen
A1  - Angermeier, Anselm
A1  - Barlinn, Jessica
A1  - Busetto, Loraine
A1  - Grau, Armin J.
A1  - Günther, Albrecht
A1  - Gumbinger, Christoph
A1  - Hubert, Nikolai
A1  - Hüttemann, Katrin
A1  - Klingner, Carsten
A1  - Naumann, Markus
A1  - Palm, Frederick
A1  - Remi, Jan
A1  - Rücker, Viktoria
A1  - Schessl, Joachim
A1  - Schlachetzki, Felix
A1  - Schuppner, Ramona
A1  - Schwab, Stefan
A1  - Schwartz, Andreas
A1  - Trommer, Adrian
A1  - Urbanek, Christian
A1  - Volbers, Bastian
A1  - Weber, Joachim
A1  - Wojciechowski, Claudia
A1  - Worthmann, Hans
A1  - Zickler, Philipp
A1  - Heuschmann, Peter U.
A1  - Haeusler, Karl Georg
A1  - Hubert, Gordian Jan
T1  - Impact of the coronavirus disease 2019 pandemic on stroke teleconsultations in Germany in the first half of 2020
JF  - European Journal of Neurology
N2  - Background and purpose
The effects of the coronavirus disease 2019 (COVID-19) pandemic on telemedical care have not been described on a national level. Thus, we investigated the medical stroke treatment situation before, during, and after the first lockdown in Germany.

Methods
In this nationwide, multicenter study, data from 14 telemedical networks including 31 network centers and 155 spoke hospitals covering large parts of Germany were analyzed regarding patients' characteristics, stroke type/severity, and acute stroke treatment. A survey focusing on potential shortcomings of in-hospital and (telemedical) stroke care during the pandemic was conducted.

Results
Between January 2018 and June 2020, 67,033 telemedical consultations and 38,895 telemedical stroke consultations were conducted. A significant decline of telemedical (p < 0.001) and telemedical stroke consultations (p < 0.001) during the lockdown in March/April 2020 and a reciprocal increase after relaxation of COVID-19 measures in May/June 2020 were observed. Compared to 2018–2019, neither stroke patients' age (p = 0.38), gender (p = 0.44), nor severity of ischemic stroke (p = 0.32) differed in March/April 2020. Whereas the proportion of ischemic stroke patients for whom endovascular treatment (14.3% vs. 14.6%; p = 0.85) was recommended remained stable, there was a nonsignificant trend toward a lower proportion of recommendation of intravenous thrombolysis during the lockdown (19.0% vs. 22.1%; p = 0.052). Despite the majority of participating network centers treating patients with COVID-19, there were no relevant shortcomings reported regarding in-hospital stroke treatment or telemedical stroke care.

Conclusions
Telemedical stroke care in Germany was able to provide full service despite the COVID-19 pandemic, but telemedical consultations declined abruptly during the lockdown period and normalized after relaxation of COVID-19 measures in Germany.
KW  - COVID-19
KW  - SARS-CoV- 2
KW  - stroke
KW  - telemedicine
KW  - survey
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-259396
VL  - 28
IS  - 10
ER  -