Roni Hogri

Roni Hogri
Medical University of Vienna | MedUni Vienna · Department of Neurophysiology

PhD

About

11
Publications
9,092
Reads
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94
Citations
Citations since 2016
4 Research Items
47 Citations
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214
201620172018201920202021202202468101214
Introduction
A postdoc at Jürgen Sandkühler's lab at Center for Brain Research, Medical University of Vienna. My current work focuses on ascending projections from the spinal cord to the brain, and their roles in pain pathology. This follows my PhD studies at Tel-Aviv University, which focused on somatosensory signaling in the cerebellar system, and the development of closed-loop cerebellar neuroprostheses. My main technical skills include in vivo electrophysiology, optogenetics, and behavior.
Additional affiliations
January 2015 - present
Medical University of Vienna
Position
  • PostDoc Position
June 2014 - December 2014
Tel Aviv University
Position
  • PostDoc Position
Description
  • Development of optogenetic techniques in the study of cerebellar motor learning
October 2010 - August 2013
The Open University of Israel
Position
  • Instructor
Description
  • Course: "Research Methods in Social Sciences". Frontal lectures and paper grading.

Publications

Publications (11)
Article
A very-large-scale integration field-programmable mixed-signal array specialized for neural signal processing and neural modeling has been designed. This has been fabricated as a core on a chip prototype intended for use in an implantable closed-loop prosthetic system aimed at rehabilitation of the learning of a discrete motor response. The chosen...
Article
The cerebellum is necessary and sufficient for the acquisition and execution of adaptively timed conditioned motor responses following repeated paired presentations of a conditioned stimulus and an unconditioned stimulus. The underlying plasticity depends on the convergence of conditioned and unconditioned stimuli signals relayed to the cerebellum...
Article
Full-text available
Neuroprostheses could potentially recover functions lost due to neural damage. Typical neuroprostheses connect an intact brain with the external environment, thus replacing damaged sensory or motor pathways. Recently, closed-loop neuroprostheses, bidirectionally interfaced with the brain, have begun to emerge, offering an opportunity to substitute...
Article
The lateral parabrachial nucleus (LPBN) plays an important role in the processing and establishment of pain aversion. It receives direct input from the superficial dorsal horn and forms reciprocal connections with the periaqueductal grey matter (PAG), which is critical for adaptive behaviour and the modulation of pain processing. Here, using in sit...
Article
Pain and emotion are strongly regulated by neurons in the central nucleus of the amygdala (CeA), a major output of the limbic system; yet, the neuronal signaling pathways underlying this modulation are incompletely understood. Here, we characterized a subpopulation of CeA neurons that express the CaMKIIα gene (CeACAM neurons) and project to the lat...
Chapter
In a series of studies, we demonstrated a brain-computer interface (BCI) system in which a disabled cerebellar network in rat’s brain was replaced by a biomimetic synthetic model that reliably recovered the motor learning function of the cerebellar network [34, 21]. While we proved feasibility by managing some neuroscientific and methodological cha...
Article
Full-text available
Emulating the input–output functions performed by a brain structure opens the possibility for developing neuroprosthetic systems that replace damaged neuronal circuits. Here, we demonstrate the feasibility of this approach by replacing the cerebellar circuit responsible for the acquisition and extinction of motor memories. Specifically, we show tha...
Article
Chronic electrodes are widely used for brain degenerative and psychiatric daises such as Parkinson's diseases, major depression, and obsessive-compulsive disorder, and for neuronal prosthesis. Brain immune reaction to electrodes in the form of glial scar encapsulates the electrode and reduces the efficacy of deep brain stimulation and neuronal pros...
Article
Full-text available
In this paper the replacement of a lost learning function of rats through a computer-based real-time recording and feedback system is shown. In an experiment two recording electrodes and one stimulation electrode were implanted in an anesthetized rat. During a classical-conditioning paradigm, which includes tone and airpuff stimulation, biosignals...
Conference Paper
In this paper we propose a Rapid Prototyping Environment (RPE) for real-time biosignal analysis including ECG, EEG, ECoG and EMG of humans and animals requiring a very precise time resolution. Based on the previous RPE which was mainly designed for developing Brain Computer Interfaces (BCI), the present solution offers tools for data preprocessing,...

Questions

Questions (3)
Question
I am looking for high-quality literature about aversive auditory stimuli in rodents (preferably rats). I am particularly interested if anyone has been able to show unconditioned aversion responses to auditory stimuli while also providing some evidence that these stimuli are not noxious (i.e., are not aversive due to being painful, e.g. do not seem to activate Ad- and C-fibers).

Network

Cited By

Projects

Projects (2)
Project
This project focuses on the role of the brainstem lateral parabrachial nucleus (LPBN) as a nexus of pain and emotional-motivational processing. The project consists of studies looking at LPBN connectivity, modulation, plasticity, and techniques for measuring pain and emotional behavior.