Altered Cortical Activity during a Finger Tap in People with Stroke.

This study describes electroencephalography (EEG) measurements during a simple finger movement in people with stroke to understand how temporal patterns of cortical activation and network connectivity align with prolonged muscle contraction at the end of a task. We investigated changes in the EEG temporal patterns in the beta band (13-26 Hz) of people with chronic stroke (N = 10, 7 F/3 M) and controls (N = 10, 7 F/3 M), during and after a cued movement of the index finger. We quantified the change in beta band EEG power relative to baseline as activation at each electrode and the change in task-based phase-locking value (tbPLV) and beta band task-based coherence (tbCoh) relative to baseline coherence as connectivity between EEG electrodes.

Medical Device Development from Ideation to Regulation and Technology Transfer in Low- and Middle-income Countries.

Necessity motivates innovators in low- to middle-income countries (LMICs) to develop medical devices that solve unmet local health needs. At the start of each process, multidisciplinary teams incubate ideas. Design planning and validation require funding, infrastructure, procurement, and testing.