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Dear All, Today! - Thursday 26th May at 2.00 pm (UK) via Teams Click
here to join the meeting We are delighted to welcome Professor Christopher Petkov from the Laboratory of Comparative Neuropsychology, Newcastle University (UK) and University of Iowa (USA) tomorrow. Prof Petkov
will be giving the following talk: Title:
“Neural transformations of vocalizations and auditory sequences
into higher-order structures” Abstract:
There is considerable interest in understanding the neural transformations that occur at every stage in the auditory system. These are no longer thought to be simply feedforward or unidirectional,
but rather are better conceived of as bidirectional processes and interactions that occur at every stage in the auditory system and influence sensory processing and expectation. A prime example of a system that efficiently transforms vocalizations and auditory
sequences into higher-order structures is the human language system. However, because this system in humans is often thought to be special, the aspects of it that have parallels with the neural systems of other animals remains an open question. In this presentation,
I overview our work in human and nonhuman primates involving two ongoing research strands. One strand has focused on the processing of voice identity content in conspecific vocalizations, including how this is integrated with information from the visual modality
into, what we now see as, ‘amodal’ or sensory invariant neural representations. The second strand has focused on the processing of auditory sequences using statistical or operant learning tasks. The two strands of work have generated hypotheses on the key
neural transformations and neuronal codes that bind either concurrent information from the auditory and visual senses or sequentially distributed dependencies in time. I conclude the presentation by showing that there are now closer nonhuman animal parallels
to the human auditory and language system, which bodes well for understanding fundamental aspects of it with animal models and more directly informing research with patients that have auditory disorders.
Bio:
Chris Petkov is Professor of Comparative Neuropsychology at Newcastle University, UK, and Vice Chair for Research at the University of Iowa, USA. The laboratory specializes in advanced imaging
and neurophysiological research and the research with nonhuman primates informs and is directly responsive to work with neurosurgery and neurology patients. The laboratory studies auditory, multisensory and cognitive functions, and seeks to better understand
evolutionary change in order to highlight brain specializations and those based on evolutionarily conserved principles. We are also interested in understanding the impact on and possible compensation by the auditory system resulting from neurological disorders
or neurosurgical treatment affecting hearing and auditory cognition. Chris is involved in international initiatives, including the primate neuroimaging (PRIME-DE) initiative, and the laboratory research has been supported by the Wellcome Trust, NC3Rs, BBSRC,
European Research Council and National Institutes of Health. We look forward to seeing you. Best wishes, Joe ________________________________________________________________________________ Microsoft Teams meeting Join on your computer or mobile app Click
here to join the meeting 2.00 pm / 14:00 (GMT/Greenwich Mean Time) 3.00 pm / 15:00 (CET/Central European Time) 6.00 am / 06:00 (USA Pacific) 8.00 am / 08:00 (USA Central) 9.00 am / 09:00 (USA Eastern) 9.00 pm / 21:00 (CST/China Standard Time) Dr Joseph Sollini Auditory Circuits Lab Hearing Sciences Mental Health and Clinical Neuroscience, School of Medicine The University of Nottingham W:
https://www.nottingham.ac.uk/research/groups/hearingsciences/people/joseph.sollini W:
https://orcid.org/0000-0002-1974-4291 Dr Joseph Sollini Auditory Circuits Lab Hearing Sciences Mental Health and Clinical Neuroscience, School of Medicine The University of Nottingham W:
https://www.nottingham.ac.uk/research/groups/hearingsciences/people/joseph.sollini W:
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