Joel I. Berger

The University of Iowa

About Me

My primary research area is auditory neuroscience. I have a fascination with understanding how sound is represented within the brain, both in the presence of external stimuli and in the absence of an objective stimulus, as is the case with subjective tinnitus. As a musician, I have experienced first-hand the power that auditory stimuli can have on the brain. I am interested in furthering our understanding of basic neuroscience and translating this into benefits for patients, utilising the latest tools in intracranial ECoG, behavioural neuroscience, PET and source space EEG. My years of experience in Matlab analysis help me greatly in this endeavour. Much of my recent time has additionally been focussed on developing novel approaches to single and multi-unit recordings in humans.

I am currently an assistant professor in the Department of Neurosurgery at The University of Iowa, in the Human Brain Research Laboratory of Matt Howard, MD. I obtained my BSc from the University of Lincoln (UK) in 2008, where I graduated with first class honours. My dissertation assessed the association between obsessive-compulsiveness and cognitive dissonance. Subsequently, I received my PhD from the University of Nottingham in 2014, under the supervision of Prof. Alan Palmer and Dr Mark Wallace. My thesis was on the behavioural and neural correlates of tinnitus. My first postdoctoral position was at the MRC Institute of Hearing Research, also under the supervision of Prof. Alan Palmer. I then moved to Iowa for a postdoctoral appointment followed by a faculty appointment, to pursue further direct physiological and neuroimaging measurements of auditory perception.

CV (pdf)

Recent work

  • Berger JI, Gander PE, Kumar S (accepted) A social cognition perspective on misophonia. Philosophical Transactions of the Royal Society B. http://doi.org/10.31234/osf.io/mb7dz
  • Trapp NT, Tsang EW, Bruss J, Russo S, Gander PE, Berger JI, Nourski KV, Rosanova M, Keller CJ, Oya H, Howard MA, Boes AD (2024) TMS-associated auditory evoked potentials can be effectively masked: Evidence from intracranial EEG. Brain Stimulation 17(3): 616-618. http://doi.org/10.1016/j.brs.2024.05.002
  • Tabari F, Berger JI, Flouty O, Copeland B, Greenlee JD, Johari K (2024) Speech, Voice, and Language Outcomes Following Deep Brain Stimulation: A Systematic Review. PLoS One 19(5): e0302739. https://doi.org/10.1371/journal.pone.0302739
  • Berger JI, Billig AJ, Kumar S, Sedley W, Griffiths TD, Gander PE (2024) What is the role of the hippocampus in the persistence of tinnitus? Human Brain Mapping 45(3): e26627. https://doi.org/10.1002/hbm.26627
  • Johari K, Berger JI (2024) Theta Oscillations within Right Dorsolateral Prefrontal Cortex Contribute Differently to Speech vs. Limb Inhibition: An HD-tDCS/EEG study. J Neurosci Res 102:2, e25298. https://doi.org/10.1002/jnr.25298
  • Ash PA, Benzaquen E, Gander PE, Berger JI, Kumar S (2024) Mimicry in misophonia: A large-scale survey of prevalence and relationship with trigger sounds. J Clin Psychol 80(1): 186-197. https://doi.org/10.1002/jclp.23605
  • Nourski KV*, Steinschneider M*, Rhone AE, Berger JI, Dappen ER, Kawasaki H, Howard MA (2024) Intracranial electrophysiology of spectrally degraded speech in the human cortex. Front Human Neurosci 17. https://doi.org/10.3389/fnhum.2023.1334742
  • Choi I, Gander PE, Berger JI, Woo J, Choy M, Hong J, Colby S, McMurray B, Griffiths TD (2023) Spectral grouping of electrically encoded sound predicts speech-in-noise performance in cochlear implantees. Journal of the Association for Research in Otolaryngology (JARO) 24(6): 607-617. https://doi.org/10.1007/s10162-023-00918-x
  • Kocsis Z, Jenison RL, Cope TE, Taylor PN, Calmus RM, McMurray B, Rhone AE, Sarrett ME, Kikuchi Y, Gander PE, Berger JI, Kovach CK, Choi I, Greenlee JD, Kawasaki H, Griffiths TD, Howard MA, Petkov CI (2023) Immediate causal impact of disconnecting a neural hub in the human brain. Nature Commun 14, 6264. https://doi.org/10.1038/s41467-023-42088-7
  • Berger JI, Gander PE, Kikuchi Y, Petkov CI, Kumar S, Kovach CK, Oya H, Kawasaki H, Howard MA, Griffiths TD (2023) Distribution of multiunit pitch responses recorded intracranially from human auditory cortex. Cereb Cortex 33(14), 9105-9116. https://doi.org/10.1093/cercor/bhad186
  • Berger JI, Gander PE, Kim S, Schwalje A, Woo J, Na Y, Holmes A, Hong J, Dunn C, Hansen M, Gantz B, McMurray B, Griffiths TD, Choi I (2023) Neural correlates of individual differences in speech-in-noise performance in a large cohort of cochlear implant users. Ear Hear Epub ahead of print. PMID: 37144890. https://doi.org/10.1097/AUD.0000000000001357
  • Johari K, Berger JI (2023). High-definition transcranial direct current stimulation over right dorsolateral prefrontal cortex differentially modulates inhibitory mechanisms for speech vs. limb movement. Psychophysiology 60, e14289. https://doi.org/10.1111/psyp.14289



  • Publications

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    Contact Me

    email: first hyphen last at uiowa.edu


    Joel I. Berger, PhD
    Dept of Neurosurgery
    1800 JPP
    The University of Iowa
    Iowa City, IA
    52242

    Links: Human Brain Research Laboratory; Auditory Cognition Group