The new research makes this possible for the first time with a new genetically encoded voltage indicator called ASAP5, the ...

Note: If the gain indicated at the left of the ECG is turned down accidentally, the voltage will be falsely low (pseudo low voltage). The indicator should be set to 10 mm amplitude.

The two resistors may have fixed values or one may be an LDR, a thermistor or other input device. The supply voltage is divided in the ratio of the resistances in the voltage divider. For the ...