Superior cortical venous anatomy for endovascular device implantation: a systematic review DOI
Jamie Brannigan, Alexander McClanahan, Ferdinand Hui

et al.

Journal of NeuroInterventional Surgery, Journal Year: 2024, Volume and Issue: unknown, P. jnis - 021434

Published: March 27, 2024

Endovascular electrode arrays provide a minimally invasive approach to access intracranial structures for neural recording and stimulation. These are currently used as brain-computer interfaces (BCIs) deployed within the superior sagittal sinus (SSS), although cortical vein implantation could improve quality quantity of recorded signals. However, anatomy veins is heterogenous poorly characterised. MEDLINE Embase databases were systematically searched from inception December 15, 2023 studies describing veins. A total 28 included: 19 cross-sectional imaging studies, six cadaveric one intraoperative anatomical study review. There was substantial variability in diameter, length, confluence angle, location relative underlying cortex. The mean number SSS branches ranged 11 45. Trolard most often reported largest vein, with diameter ranging 2.1 mm 3.3 mm. identified posterior central sulcus. One found significant age-related another myoendothelial sphincters at base Cortical data limited inconsistent. tributary SSS; however, its relation cortex variable. Variability may necessitate individualized pre-procedural planning training decoding endovascular BCI. Future focus on cortex, sulcal vessels, vessel wall required.

Language: Английский

Axonal Regeneration in the Central Nervous System DOI
Lars Klimaschewski

Springer eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 95 - 155

Published: Jan. 1, 2024

Language: Английский

Citations

3
Neural subspaces of imagined movements in parietal cortex remain stable over several years in humans DOI Creative Commons
Luke Bashford, Isabelle A. Rosenthal, Spencer Kellis

et al.

Journal of Neural Engineering, Journal Year: 2024, Volume and Issue: 21(4), P. 046059 - 046059

Published: Aug. 1, 2024

Abstract Objective. A crucial goal in brain–machine interfacing is the long-term stability of neural decoding performance, ideally without regular retraining. Long-term has only been previously demonstrated non-human primate experiments and primary sensorimotor cortices. Here we extend previous methods to determine humans by identifying aligning low-dimensional structures data. Approach. Over a period 1106 871 d respectively, two participants completed an imagined center-out reaching task. The longitudinal accuracy between all day pairs was assessed latent subspace alignment using principal components analysis canonical correlations multi-unit intracortical recordings different brain regions (Brodmann Area 5, Anterior Intraparietal junction postcentral intraparietal sulcus). Main results. We show stable representation activity subspaces from higher-order association areas humans. Significance. These results can be practically applied significantly expand longevity generalizability brain–computer interfaces. Clinical Trials NCT01849822, NCT01958086, NCT01964261

Language: Английский

Citations

3
Deciphering brain activation during wrist movements: comparative fMRI and fNIRS analysis of active, passive, and imagery states DOI

Maziar Jalalvandi,

Hamid Sharini, Lida Shafaghi

et al.

Experimental Brain Research, Journal Year: 2024, Volume and Issue: 243(1)

Published: Dec. 31, 2024

Language: Английский

Citations

2
Should bionic limb control mimic the human body? Impact of control strategy on bionic hand skill learning DOI Open Access
Hunter R. Schone,

Malcolm Udeozor,

Mae Moninghoff

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 8, 2023

ABSTRACT A longstanding engineering ambition has been to design anthropomorphic bionic limbs: devices that look like and are controlled in the same way as biological body (biomimetic). The untested assumption is biomimetic motor control enhances device embodiment, learning, generalization, automaticity. To test this, we compared non-biomimetic strategies for able-bodied participants when learning operate a wearable myoelectric hand. We across days behavioural tasks two training groups: Biomimetic (mimicking desired hand gesture with hand) Arbitrary (mapping an unrelated gesture). For both trained groups, improved limb control, reduced cognitive reliance, increased embodiment over users had more intuitive faster early training. matched performance later Further, arbitrary showed generalization novel strategy. Collectively, our findings suggest provide different benefits. optimal strategy likely not strictly biomimetic, but rather flexible within spectrum, depending on user, available opportunities user requirements.

Language: Английский

Citations

6
Superior cortical venous anatomy for endovascular device implantation: a systematic review DOI
Jamie Brannigan, Alexander McClanahan, Ferdinand Hui

et al.

Journal of NeuroInterventional Surgery, Journal Year: 2024, Volume and Issue: unknown, P. jnis - 021434

Published: March 27, 2024

Endovascular electrode arrays provide a minimally invasive approach to access intracranial structures for neural recording and stimulation. These are currently used as brain-computer interfaces (BCIs) deployed within the superior sagittal sinus (SSS), although cortical vein implantation could improve quality quantity of recorded signals. However, anatomy veins is heterogenous poorly characterised. MEDLINE Embase databases were systematically searched from inception December 15, 2023 studies describing veins. A total 28 included: 19 cross-sectional imaging studies, six cadaveric one intraoperative anatomical study review. There was substantial variability in diameter, length, confluence angle, location relative underlying cortex. The mean number SSS branches ranged 11 45. Trolard most often reported largest vein, with diameter ranging 2.1 mm 3.3 mm. identified posterior central sulcus. One found significant age-related another myoendothelial sphincters at base Cortical data limited inconsistent. tributary SSS; however, its relation cortex variable. Variability may necessitate individualized pre-procedural planning training decoding endovascular BCI. Future focus on cortex, sulcal vessels, vessel wall required.

Language: Английский

Citations

2