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Serotonin selectively enhances perception and sensory neural responses to stimuli generated by same-sex conspecifics
- Tara Deemyad, M. Metzen, Y. Pan, M. Chacron
- Biology, Medicine
- Proceedings of the National Academy of Sciences
- 11 November 2013
Significance Serotonergic innervation of sensory areas is seen ubiquitously across species and systems, but its functional role remains unclear to this day. We used a systems level approach to… Expand
Weakly electric fish display behavioral responses to envelopes naturally occurring during movement: implications for neural processing
How the brain processes natural sensory input remains an important and poorly understood problem in neuroscience. The efficient coding hypothesis asserts that the brain's coding strategies are… Expand
Neotrombicula autumnalis (Acari, Trombiculidae) as a vector for Borrelia burgdorferi sensu lato?
Larvae of the trombiculid mite Neotrombicula autumnalis were collected at 18 sites in and around Bonn, Germany, to be screened for infection with Borrelia burgdorferi s.l. by means of PCR. Questing… Expand
Neural correlations enable invariant coding and perception of natural stimuli in weakly electric fish
We demonstrate that correlated neural activity allows for the emergence of an invariant representation of natural communication stimuli that is further refined across successive stages of processing in the weakly electric fish Apteronotus leptorhynchus. Expand
Feedback optimizes neural coding and perception of natural stimuli
We demonstrate that feedback pathways from higher brain areas mediate optimized encoding of naturalistic stimuli via temporal whitening in the weakly electric fish Apteronotus leptorhynchus. Expand
Weakly electric fish distinguish between envelope stimuli arising from different behavioral contexts
- Rhalena A. Thomas, M. Metzen, M. Chacron
- Physics, Medicine
- Journal of Experimental Biology
- 1 August 2018
ABSTRACT Understanding how sensory information is processed by the brain in order to give rise to behavior remains poorly understood in general. Here, we investigated the behavioral responses of the… Expand
Electrosensory Midbrain Neurons Display Feature Invariant Responses to Natural Communication Stimuli
- Tristan Aumentado-Armstrong, M. Metzen, M. K. J. Sproule, M. Chacron
- Biology, Computer Science
- PLoS Comput. Biol.
- 1 October 2015
We show that midbrain electrosensory neurons can respond selectively and in an invariant manner to heterogeneity in behaviorally relevant stimulus waveforms. Expand
Descending pathways generate perception of and neural responses to weak sensory input
Natural sensory stimuli frequently consist of a fast time-varying waveform whose amplitude or contrast varies more slowly. While changes in contrast carry behaviorally relevant information necessary… Expand
Testing miniaturized electrodes for impedance measurements within the β-dispersion – a practical approach
Abstract Miniaturized electrodes are introduced in life sciences in a great number and variety. They are often designed for a special purpose without the need of quantitative analysis, such as for… Expand
Electrosensory processing in Apteronotus albifrons: implications for general and specific neural coding strategies across wave-type weakly electric fish species.
Understanding how the brain processes sensory input to generate behavior remains an important problem in neuroscience. Towards this end, it is useful to compare results obtained across multiple… Expand