richardnaar
richardnaar
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- richardnaar
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- Tartu
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Comments
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Thank you! You are right that a transition within one 4-ms sample does not establish the sensor’s actual response time. I don’t currently have paired onset/offset flip timestamps for that recording. We are, however, planning to compare the OpenBC…
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One additional observation is that the detection threshold does not seem to explain the shorter measured durations. I tried a wide range of thresholds on the RAW trace and obtained the same pulse boundaries and durations. The signal is almost square…
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We are using the Photoresistor Module supplied with the current OpenBCI External Trigger Add-on for the Cyton, connected to D12 exactly as described in the OpenBCI guide. We have not added any external components or filtering. I checked the produ…
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Thank you, that makes sense. The stimulus was presented using a recent version of PsychoPy (2026.1.3). In an earlier version we timed the pulses using elapsed time rather than frame counts, and that indeed produced intervals that were consistentl…
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Thank you! I checked the files more closely and the code path you pointed out seems very consistent with what we are seeing. The BDF header contains 12 signals in total: EEG 1–8, Accel X, Accel Y, Accel Z, and BDF Annotations. EEG 1–8 and Accel X…