Antonio H. Lara
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View article: Postoperative data leakage in AI-based IOL power prediction formulas: a hidden source of bias
Postoperative data leakage in AI-based IOL power prediction formulas: a hidden source of bias Open
This study addresses a critical bias in non-optical formulas purely based on AI models and designed to predict the implanted power using the postoperative spherical equivalent (SE) as an input. Two predictive models were developed using th…
View article: Identifying Interpretable Latent Factors with Sparse Component Analysis
Identifying Interpretable Latent Factors with Sparse Component Analysis Open
In many neural populations, the computationally relevant signals are posited to be a set of ‘latent factors’ – signals shared across many individual neurons. Understanding the relationship between neural activity and behavior requires the …
View article: Kernel Flux: a whole-head 432-magnetometer optically-pumped magnetoencephalography (OP-MEG) system for brain activity imaging during natural human experiences
Kernel Flux: a whole-head 432-magnetometer optically-pumped magnetoencephalography (OP-MEG) system for brain activity imaging during natural human experiences Open
MEG based on optically-pumped magnetometry (OP-MEG) operates with miniaturized, wearable insulation, in contrast to massive cryogenic dewars for SQUID-MEG, and allows placement of the sensors close to the scalp. This allows more natural he…
View article: Perturbation of Macaque Supplementary Motor Area Produces Context-Independent Changes in the Probability of Movement Initiation
Perturbation of Macaque Supplementary Motor Area Produces Context-Independent Changes in the Probability of Movement Initiation Open
The contribution of the supplementary motor area (SMA) to movement initiation remains unclear. SMA exhibits premovement activity across a variety of contexts, including externally cued and self-initiated movements. Yet SMA lesions impair i…
View article: Conservation of preparatory neural events in monkey motor cortex regardless of how movement is initiated
Conservation of preparatory neural events in monkey motor cortex regardless of how movement is initiated Open
A time-consuming preparatory stage is hypothesized to precede voluntary movement. A putative neural substrate of motor preparation occurs when a delay separates instruction and execution cues. When readiness is sustained during the delay, …
View article: Conservation of preparatory neural events regardless of how movement is initiated
Conservation of preparatory neural events regardless of how movement is initiated Open
Voluntary movement is believed to be preceded by a preparatory stage. Evidence arises from experiments where a delay separates instruction and execution cues. While this sequence emulates some real-world situations ( e.g. , swatting a fly …