Outliers in graph data—such as noise or other signal artifact—may result in the unwanted or inaccurate placement of event marks during automated analysis routines that use Find Cycle and have peak tracking enabled.
Any unusual area in the data that contains a major jump can throw off the Find Cycle algorithm tracking the threshold and skew the results. Should this occur, this workaround using some basic AcqKnowledge software tools will prove helpful for extracting statistics from relevant data while excluding noise or other unwanted artifacts. These artifacts will be replaced by inputting values into the graph. Ultimately, the values inputted into the graph must fall within the lowest and highest points of the cycles. To accomplish this, follow the below example (which uses a noninvasive blood pressure graph):
After processing all “bad” areas, analyses that use Find Cycle (such as ABP Classifier) should yield the proper results.
The ERS Evoked Response Smart Amplifier is an extremely low noise differential amplifier that accurately amplifies very small potentials, such as those associated with stimulus/response, startle response, ABR auditory brainstem response, somatosensory evoked response, signal-averaged recordings, and nerve conduction velocity recordings. BIOPAC’s new Smart Amplifiers are designed for great data. Smart Amplifiers improve performance by […]
View AllThe mind and body work together in many ways and psychophysiology research provides insight to these connections. BIOPAC has a variety of systems to power your emotion, arousal, stress, cognitive assessment, group interaction, startle, and other psychophysiology research. Here are some recent studies that have used BIOPAC systems for psychophysiological research… Skin conductance, facial EMG, […]
For immediate release: January 4, 2023 Amiens, France and GOLETA, California, USA Seenel Imaging SAS and BIOPAC Systems, Inc. have formed a long-term global partnership to distribute MedelOpt®, Seenel Imaging’s groundbreaking wearable neuroimaging device for the neuroscience research market. Seenel Imaging, based in France, continues its international expansion by partnering with BIOPAC Systems, […]
Read All