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Record W7133011578

Digital Systems for Closed-Loop Neuromodulation Research

2023· dissertation· W7133011578 on OpenAlexfundno aff
Rakshith Ramesh

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldNeuroscience
TopicNeuroscience and Neural Engineering
Canadian institutionsnot available
FundersUniversity of Toronto
KeywordsFirmwareControl reconfigurationNeuromodulationSoftwareBrain–computer interfaceBrain stimulation
DOInot available

Abstract

fetched live from OpenAlex

Closed-Loop Neuromodulation (CLN) is a form of adaptive therapy that provides stimulation only when necessary. Clinical trials have shown that, despite several advantages, fundamental insights in pathological state-classification and stimulus application are still needed to realize the full potential of CLN. However, the existing research tools have functional limitations or proprietary restrictions that hinder exploration of state-classification algorithms and stimulation protocols. This thesis presents the design of a digital hardware platform to address these issues. The platform interfaces with neural sensors and enables the development of custom software and firmware for the evaluation of complex algorithms and low-latency applications. In addition, the incorporation of a Python-based hardware description language and partial reconfiguration facilitates the creation of a reusable firmware library for CLN research. An in vitro electrophysiological system using multielectrode arrays and an in vivo multimodal system with an implantable opto-electrode are implemented to demonstrate the capability of the platform.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.005
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.613
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.003
Science and technology studies0.0010.000
Scholarly communication0.0020.001
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.198
GPT teacher head0.447
Teacher spread0.250 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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