Mattias Horan

ORCID: 0000-0002-7766-808X
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About
Contact & Profiles
Research Areas
  • Neural dynamics and brain function
  • Neuroscience and Neural Engineering
  • Neural and Behavioral Psychology Studies
  • EEG and Brain-Computer Interfaces
  • Visual perception and processing mechanisms
  • Functional Brain Connectivity Studies
  • Data Visualization and Analytics
  • CCD and CMOS Imaging Sensors
  • Musculoskeletal pain and rehabilitation
  • Pain Mechanisms and Treatments
  • Pain Management and Treatment
  • Retinal Development and Disorders
  • Cell Image Analysis Techniques
  • Cognitive Science and Education Research
  • Viral Infectious Diseases and Gene Expression in Insects
  • Bacterial Genetics and Biotechnology
  • Gene Regulatory Network Analysis

Sainsbury Laboratory
2024

University College London
2022-2024

Allen Institute for Neural Dynamics
2024

Harvard University
2024

Allen Institute
2024

University of Cambridge
2024

Columbia University
2019-2022

Brain (Germany)
2021

University of Southern Denmark
2014-2020

Odense University Hospital
2020

Neuropixels probes represent the state-of-the-art for high-yield electrophysiology in neuroscience: simultaneous recording of hundreds neurons is now routinely carried out head-restrained animals. In contrast, neural unrestrained animals, as well and tracking over days, remains challenging, though it possible using chronic implants. A major challenge availability simple methods that can be implemented with limited or no prior experience probes, while achieving reliable, reusable, versatile...

10.7554/elife.98977.1 preprint EN 2024-07-08

Animals are intrinsically motivated to obtain information independently of instrumental incentives. This motivation depends on two factors: a desire resolve uncertainty by gathering accurate and positively-valenced observations, which predict favorable rather than unfavorable outcomes. To understand the neural mechanisms, we recorded parietal cortical activity implicated in prioritizing stimuli for spatial attention gaze, task monkeys were free (but not trained) about probabilistic...

10.1038/s41467-022-33585-2 article EN cc-by Nature Communications 2022-10-07

This is the protocol associated with Repix: reliable, reusable, versatile chronic Neuropixels implants using minimal components. In main report, we describe development, deployment, and evaluation of Repix, a implantation system that permits repeated re-use probes characterized this for variety use cases. appropriate in -Both unrestrained restrained animals performing wide behaviors as decision-making, social behaviors, foraging, sleep -Mice rats -Neuropixels 1.0 or 2.0 (as well Neuronexus...

10.17504/protocols.io.4r3l2qm2ql1y/v1 preprint EN 2024-03-19

Neuropixels probes represent the state-of-the-art for high-yield electrophysiology in neuroscience: simultaneous recording of hundreds neurons is now routinely carried out head-restrained animals. In contrast, neural unrestrained animals, as well and tracking over days, remains challenging, though it possible using chronic implants. A major challenge availability simple methods that can be implemented with limited or no prior experience probes, while achieving reliable, reusable, versatile...

10.1101/2024.04.25.591118 preprint EN 2024-04-29

Neuropixels probes represent the state-of-the-art for high-yield electrophysiology in neuroscience: simultaneous recording of hundreds neurons is now routinely carried out head-restrained animals. In contrast, neural unrestrained animals, as well and tracking over days, remains challenging, though it possible using chronic implants. A major challenge availability simple methods that can be implemented with limited or no prior experience probes, while achieving reliable, reusable, versatile...

10.7554/elife.98977 preprint EN 2024-07-08

We argue that the type of meta-learning proposed by Binz et al. generates models with low interpretability and falsifiability have limited usefulness for neuroscience research. An alternative approach to based on hyperparameter optimization obviates these concerns can generate empirically testable hypotheses biological computations.

10.1017/s0140525x24000219 article EN Behavioral and Brain Sciences 2024-01-01

The lac promoter is one of the most commonly used promoters for expression control recombinant genes in E. coli. In absence galactosides, repressed by its repressor protein LacI. Since regulated a repressor, overexpression LacI necessary regulation when introduced on high-copy plasmid. For that purpose, modified variant LacI, LVA-tagged was submitted to Registry Standard Biological Parts and has been more than 500 constructs since then. We have found, however, natural superior as controller...

10.1021/sb500031h article EN ACS Synthetic Biology 2014-12-19

Abstract Gathering information is crucial for maximizing fitness, but requires diverting resources from searching directly primary rewards to actively exploring the environment. Optimal decision-making thus maximizes while reducing effort costs, little known about neural implementation of these tradeoffs. We present a Reinforcement Meta-Learning (RML) computational mechanism that solves trade-offs between value and costs gathering information. implement RML in biologically plausible...

10.1101/2021.07.18.452793 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-07-19

Abstract Animals are intrinsically motivated to resolve uncertainty and predict future events. This motivation is encoded in cortical subcortical structures, but a key open question how it generates concrete policies for attending informative stimuli. We examined this using neural recordings the monkey lateral intraparietal area (LIP), visual implicated attention gaze, during non-instrumental information demand. show that was resolved by cue enhanced visuo-spatial responses of LIP cells...

10.1101/2021.07.20.453107 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2021-07-21
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