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Fig. 2 | BMC Biomedical Engineering

Fig. 2

From: Telemetry-controlled simultaneous stimulation-and-recording device (SRD) to study interhemispheric cortical circuits in rat primary somatosensory (SI) cortex

Fig. 2

In-vivo examples of pseudophasic (non-symmetric biphasic) (a, c) and symmetric biphasic (b, d) constant current stimuli delivered to rat SI cortex with 100-kΩ platinum-iridium (Pt/Ir) microelectrode. Measured output current (black line) and simultaneously measured voltage drop (gray line) across the tissue/electrode load are shown: a cathodic: 100 μA, 1 ms; anodic: 100 μA, 2 ms; b cathodic: 50 μA, 2 ms; anodic: 60 μA, 2 ms; c cathodic: 30 μA, 1-ms; anodic: 50 μA, 2 ms, and d cathodic/anodic: 100 μA, 2 ms. Inter-pulse intervals are 1 ms (a, c) and 0.2 ms (b, d)

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BMC Biomedical Engineering

ISSN: 2524-4426

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