I studied Biology at the University of Havana and Cognitive Neurosciences at the Cuban Neuroscience Center. In 2010, I joined the Lab from Manfred Kössl in Frankfurt as PhD student, with funding from the German Academic Exchange Service (DAAD). During my studies in Cuba and during my PhD in Frankfurt, I conducted electrophysiology experiments in bats with the goal of understanding the neural specializations that enable echolocation in this fascinating animal group. In 2015 I started to co-lead the AC lab with Manfred Kössl, after obtaining my first DFG grant for studying fronto-temporal network dynamics in the bat brain. In the AC lab, I am in charge of experiments dealing with electrophysiology and bioacoustics in bats, gerbils and humans. My main research goal is to understand the underpinnings of sensory computations in the mammalian brain from an evolutionary, neuroethology-related, perspective.
Processing of echolocation information in noisy environments
Topography of information representation in the bat auditory midbrain
Brain rhythms in the auditory cortex and their relation to spiking activity
Responses to natural sound streams in the fronto-temporal network
Fronto-temporal oscillations and their relation to vocalization production in bats
Fronto-striatal oscillations and their relation to vocalization production and food ingestion in bats
Properties of bat distress vocalizations and their similarities/differences to human screams
Processing of screams in the human brain
Can respiration and olfaction modulate acoustic processing in the bat brain?
Cross-modal audio-visual processing in the bat brain
10 SELECTED PUBLICATIONS
García-Rosales F, López-Jury L, González-Palomares E, Wetekam J, Cabral-Calderín Y, Kiai A, ... & Hechavarría JC. 2022. Echolocation-related reversal of information flow in a cortical vocalization network. Nature Communications, 13(1), 1-15. doi.org/10.1038/s41467-022-31230-6
Lopez-Jury L, Garcia-Rosales F, Gonzalez-Palomares E., Kössl M, Hechavarria JC. 2021. Acoustic context modulates natural sound discrimination in auditory cortex through frequency specific adaptation. Journal of Neuroscience. JN-RM-0873-21; DOI: 10.1523/JNEUROSCI.0873-21.2021
Hechavarría, J. C., Beetz, M. J., García-Rosales, F., & Kössl, M. 2020. Bats distress vocalizations carry fast amplitude modulations that could represent an acoustic correlate of roughness. Scientific Reports, 10(1), 1-20
Weineck K., García-Rosales F., and Hechavarría JC. 2019. "Fronto-striatal oscillations predict vocal output in bats. PLOS Biology 18(3): e3000658. https://doi.org/10.1371/journal.pbio.3000658
López‐Jury L, Mannel A, García‐Rosales F, & Hechavarria JC. 2019. Modified synaptic dynamics predict neural activity patterns in an auditory field within the frontal cortex. European Journal of Neuroscience.
García-Rosales F, Röhrig D, Weineck K, Röhm M, Lin Y H, Cabral-Calderin Y, Kössl M, Hechavarria JC. 2019. Laminar specificity of oscillatory coherence in the auditory cortex. Brain Structure and Function, 224(8), 2907-2924.
García-Rosales F, Beetz MJ, Cabral-Calderin Y, Kössl M, Hechavarria JC. 2018. Neuronal coding of multiscale temporal features in communication sequences within the bat auditory cortex. Communications Biology. 20; 1:200. doi: 10.1038/s42003-018-0205-5. eCollection 2018.
Hechavarria JC, Beetz JM, Macias S, Kössl M. 2016. Vocal sequences suppress spiking in the bat auditory cortex while evoking concomitant steady-state local field potentials. Scientific reports; 6: 39226.
Hechavarria JC, Kössl M. 2014. Footprints of inhibition in the response of cortical delay-tuned neurons of bats. Journal of Neurophysiology 111:1703-1716.
Hechavarría JC, Macías S, Vater M, Mora EC, Kössl M. 2013. Blurry topography for precise target-distance computations in the auditory cortex of echolocating bats. Nature Communications. 4:2587, doi: 10.1038/ncomms3587.