Abstract
Amplitude thresholds are used in extracting information from extracellular neural recordings. While the amplitude threshold may be estimated by ensuring that behavioral variables are encoded in neural activity with maximum signal-to-noise ratio, it can also be estimated by maximum likelihood. Here, these two types of threshold are estimated using extracellular recordings collected from the motor cortex (M1) of two rats performing a well-learned visuomotor task and the estimates are compared. The results show that these two types of threshold are not significantly different. On the other hand, the width of the confidence interval of the maximum likelihood estimate is found to be related to decoding accuracy. These results are important for determining appropriate amplitude thresholds to be used in brain-machine interfaces.
Translated title of the contribution | Comparing different amplitude thresholds in extracellular neural recordings |
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Original language | Turkish |
Title of host publication | 27th Signal Processing and Communications Applications Conference, SIU 2019 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781728119045 |
DOIs | |
Publication status | Published - Apr 2019 |
Externally published | Yes |
Event | 27th Signal Processing and Communications Applications Conference, SIU 2019 - Sivas, Turkey Duration: 24 Apr 2019 → 26 Apr 2019 |
Publication series
Name | 27th Signal Processing and Communications Applications Conference, SIU 2019 |
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Conference
Conference | 27th Signal Processing and Communications Applications Conference, SIU 2019 |
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Country/Territory | Turkey |
City | Sivas |
Period | 24/04/19 → 26/04/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.