Johannes Passecker

ORCID: 0000-0002-4366-2691
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About
Contact & Profiles
Research Areas
  • Memory and Neural Mechanisms
  • Neuroscience and Neuropharmacology Research
  • Neural dynamics and brain function
  • Stress Responses and Cortisol
  • Neuroendocrine regulation and behavior
  • Psychological and Educational Research Studies
  • Advanced Fluorescence Microscopy Techniques
  • Spatial Cognition and Navigation
  • Tryptophan and brain disorders
  • Cell Image Analysis Techniques
  • Cognitive Science and Mapping
  • Olfactory and Sensory Function Studies
  • Sleep and Wakefulness Research
  • Experimental Behavioral Economics Studies
  • Genetics and Neurodevelopmental Disorders
  • Gambling Behavior and Treatments
  • Neurogenesis and neuroplasticity mechanisms
  • Decision-Making and Behavioral Economics
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Reinforcement Learning in Robotics
  • Congenital heart defects research
  • Neuroscience, Education and Cognitive Function
  • Creativity in Education and Neuroscience
  • Social Robot Interaction and HRI
  • Single-cell and spatial transcriptomics

Innsbruck Medical University
2022-2024

National Institute of Neurological Disorders and Stroke
2019-2022

Universität Innsbruck
2022

Medical University of Vienna
2015-2020

Cognitive Research (United States)
2019

Allen Institute for Brain Science
2019

Trinity College Dublin
2011-2018

How the brain sorts and routes messages do higher areas communicate with each other? Do they send out all computations equally to target leave recipient extract needed relevant information? Or does transmitting region package route differentially distinct areas, depending on content? Ciocchi et al. found that ventral hippocampus anxiety-related information preferentially prefrontal cortex goal-related nucleus accumbens. Hippocampal neurons multiple projections were more involved in a variety...

10.1126/science.aaa3245 article EN Science 2015-04-30

Successful behaviour depends on the right balance between maximising reward and soliciting information about world. Here, we show how different types of information-gain emerge when casting as surprise minimisation. We present two distinct mechanisms for goal-directed exploration that express separable profiles active sampling to reduce uncertainty. 'Hidden state' motivates agents sample unambiguous observations accurately infer (hidden) state Conversely, 'model parameter' exploration,...

10.7554/elife.41703 article EN cc-by eLife 2019-05-10

Damage involving the anterior thalamic and adjacent rostral nuclei may result in a severe anterograde amnesia, similar to amnesia resulting from damage hippocampal formation. Little is known, however, about information represented these nuclei. To redress this deficit, we recorded units three freely-moving rats (the parataenial nucleus, anteromedial nucleus reuniens). We found possessing previously unsuspected spatial properties. The various cell types show clear similarities place cells,...

10.3389/fnbeh.2015.00256 article EN cc-by Frontiers in Behavioral Neuroscience 2015-10-13

Abstract Coordinated shifts of neuronal activity in the prefrontal cortex are associated with strategy adaptations behavioural tasks, when animals switch from following one rule to another. However, network dynamics related multiple-rule changes scarcely known. We show how firing rates individual neurons prelimbic and cingulate correlate performance rats trained change their navigation multiple times according allocentric egocentric strategies. The concerted population exhibits a stable...

10.1038/s41467-017-02764-x article EN cc-by Nature Communications 2018-01-16

Abstract Successful behaviour depends on the right balance between maximising reward and soliciting information about world. Here, we show how different types of information-gain emerge when casting as surprise minimisation. We present two distinct mechanisms for goal-directed exploration that express separable profiles active sampling to reduce uncertainty. ‘Hidden state’ motivates agents sample unambiguous observations accurately infer (hidden) state Conversely, ‘model parameter’...

10.1101/411272 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2018-09-07

Stress has deleterious effects on brain, body and behaviour in humans animals alike. The present work investigated how 30-minute acute photic stress exposure impacts spatial information processing the main subregions of dorsal hippocampal formation (CA1, CA3 Dentate Gyrus), a brain structure prominently implicated memory representation. Recordings were performed from spatially tuned dentate gyrus cells rats while foraged square arena for food. procedure induced decrease firing frequencies...

10.3389/fnbeh.2011.00066 article EN cc-by Frontiers in Behavioral Neuroscience 2011-01-01

Cognitive neuroscientists aim to understand behavior often based on the underlying activity of individual neurons. Recently developed miniaturized epifluorescence microscopes allow recording cellular calcium transients, resembling neuronal activity, neurons even in deep brain areas freely behaving animals. At same time, molecular markers characterization diverse subtypes by post hoc immunohistochemical labeling. Combining both methods would researchers increase insights into how and entities...

10.1016/j.jneumeth.2020.108765 article EN cc-by-nc-nd Journal of Neuroscience Methods 2020-05-11

Abstract Neuroscience education is challenged by rapidly evolving technology and the development of interdisciplinary approaches for brain research. The Human Brain Project (HBP) Education Programme aimed to address need expertise in research equipping a new generation researchers with skills across neuroscience, medicine, information technology. Over its ten year duration, programme engaged over 1,300 experts attracted more than 5,500 participants from various scientific disciplines blended...

10.1007/s12021-024-09682-6 article EN cc-by Neuroinformatics 2024-11-06

Abstract The stress response serves vital adaptive functions. However, acute episodes often negatively impact cognitive processing. Here, we aimed to elucidate whether detrimentally affects the head‐direction cells of postsubiculum, which may in turn impair downstream spatial information We recorded neurons rats’ postsubiculum during a pellet‐chasing task baseline non‐stress conditions and after 30‐min photic exposure. Based on their firing rate, identified subpopulation that drastically...

10.1111/ejn.13887 article EN cc-by European Journal of Neuroscience 2018-03-07
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