[AUDITORY] Nottingham Hearing Sciences Seminar Series: Christian Lorenzi (Tim Beechey )

Subject: [AUDITORY] Nottingham Hearing Sciences Seminar Series: Christian Lorenzi From: Tim Beechey <00000252113a4de3-dmarc-request@xxxxxxxx> Date: Tue, 13 Jun 2023 13:39:25 +0000 --_000_AM6PR06MB6232C85CE1B60EE70C8C81FCCA55AAM6PR06MB6232eurp_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi all, We are very happy to announce the next speaker in the Nottingham Hearing Sc= iences Seminar series Prof. Christian Lorenzi, professor of experimental ps= ychology at the =C9cole normale sup=E9rieure (ENS, Paris Sciences & Lettres= University) will be speaking on =93Auditory perception of natural soundsca= pes by normal-hearing and hearing-impaired listeners=94 at 2pm (GMT) on the= 15th of June (15/6/2023). The seminar will be held over MS Teams: Click here to join the meeting<https://teams.microsoft.com/l/meetup-join/19= %3ameeting_YTU3OWI0ODItMDkxNy00ODVjLWJiMzgtMzNiYzljYjU1YmQ5%40thread.v2/0?c= ontext=3D%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid= %22%3a%226ea8aa20-734a-4feb-8e47-1017e90351f2%22%7d> Speaker bio Christian Lorenzi was initially trained as an experimental psychologist and= auditory psychophysicist at the University Lyon II in France, and as a pos= tdoctoral auditory scientist at the Medical Research Council in Cambridge a= nd at the Institute of Hearing Research in Glasgow (UK). Christian Lorenzi is conducting an interdisciplinary research programme on = human auditory perception. This programme combines various methods from psy= chophysics, neurosciences, signal processing and computational modelling of= the auditory system. Christian Lorenzi studies how humans detect, discrimi= nate and recognise natural sounds such as speech or soundscapes. He studies= the auditory perception of two types of temporal modulations of the acoust= ic signal, the temporal envelope and temporal fine structure. He examines t= he role of these two cues in auditory scene analysis and sound discriminati= on, how these cues are processed at each stage of the auditory system, and = the effects of peripheral or central damage, ageing and rehabilitation syst= ems on the perception of these temporal cues. His more recent work has taken an ecological perspective and now focuses on= the auditory perception of =93natural soundscapes=94 such as those produce= d by forests or deserts. He explores our ability to discriminate these soun= dscapes, perceive changes in habitat, moment of the day, season and biodive= rsity, and the effects of sensorineural hearing loss on these capacities. Abstract Auditory perception of natural soundscapes by normal-hearing and hearing-im= paired listeners. Christian Lorenzi, Laboratoire des syst=E8mes perceptifs = (UMR CNRS 8248), Ecole normale sup=E9rieure, Universit=E9 Paris Sciences & = Lettres, Paris, France. =93Natural soundscapes=94 correspond to complex arrangements of biological = and geophysical sounds shaped by habitat-specific sound propagation effects= , with marginal contribution of sounds generated by human activity (Grinfed= er et al., 2022). The capacity to build a =93perceptual soundscape=94 shoul= d be useful for mapping the close environment, navigating, assessing resour= ces and danger, or more simply building a sense of place and time. However,= despite the high adaptive and psychological value of processing natural so= undscapes, very little is known about the auditory cues and mechanisms at w= ork for humans (Thoret et al., 2020). This is true not only for typical (no= rmal) hearing but also for all forms of hearing disorders. This is quite su= rprising given the numerous benefits of exposure to natural sounds, such as= improved health and cognitive outcomes, positive affect and decreased stre= ss and annoyance. The goal of the present study was to assess natural sound= scape discrimination for human listeners with sensorineural hearing loss. T= he ability to discriminate natural soundscapes recorded in a temperate terr= estrial biome (Krause et al., 2011; Thoret et al., 2020) was measured in a = group of hearing-impaired (HI) listeners with bilateral, mild to severe sen= sorineural hearing loss and a group of normal-hearing (NH) controls. Sounds= cape discrimination was measured using a three-interval oddity paradigm and= the method of constant stimuli (Apoux et al., 2023). On each trial, sequen= ces of 2-second recordings varying the habitat, season and period of the da= y were presented diotically at a nominal SPL of 60 dB except for one HI lis= tener who was tested at a nominal SPL of 80 dB. Discrimination scores were = above chance level for both groups, but they were poorer for HI than NH lis= teners. On average, the scores of HI listeners were relatively well account= ed for by those of NH listeners tested with stimuli spectrally shaped to ma= tch the frequency-dependent reduction in audibility of individual HI listen= ers. However, the scores of HI listeners were not significantly correlated = with pure-tone audiometric thresholds and age. These results indicate that = the ability to discriminate natural soundscapes associated with changes in = habitat, season and period of the day is disrupted but it is not abolished.= The deficits of the HI listeners are partly accounted for by reduced audib= ility. Supra-threshold auditory deficits and individual listening strategie= s may also explain differences between NH and HI listeners. The implication= s for hearing aid rehabilitation will be discussed. References: Apoux, F., Miller-Viacava, N., F=E9rriere, R., Dai, H., Krause, B., Sueur, = J. & Lorenzi, C. (2023). Auditory discrimination of natural soundscapes. J.= Acoust. Soc. Am., 153, 2706-2723. Grinfeder, E., Lorenzi, C., Haupert, S., Sueur, J. 2022. What do we mean by= =93soundscape=94? A functional description. Front. Ecol. Evol., 10, 894232= doi: 10.3389/fevo.2022.894232 Krause, B., Gage, S.H., Joo, W., 2011. Measuring and interpreting the tempo= ral variability in the soundscape at four places in Sequoia National Park. = Landsc. Ecol., 26, 1247-1256. Thoret, E., Varnet, L., Boubenec, Y., Ferriere, R., Le Tourneau, F.-M., Kra= use, B., Lorenzi, C., 2020. Characterizing amplitude and frequency modulati= on cues in natural soundscapes: A pilot study in four habitats of a biosphe= re reserve. J. Acoust. Soc. Am., 147, 3260-3274. Timothy Beechey Medical Research Foundation Fellow Hearing Sciences =96 Scottish Section, Mental Health and Clinical Neurosciences, School of Medicine University of Nottingham New Lister Building Level 3, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow G31 2ER This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please contact the sender and delete the email and attachment.=20 Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. Email communications with the University of Nottingham may be monitored=20 where permitted by law. --_000_AM6PR06MB6232C85CE1B60EE70C8C81FCCA55AAM6PR06MB6232eurp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable <html xmlns:o=3D"urn:schemas-microsoft-com:office:office" xmlns:w=3D"urn:sc= hemas-microsoft-com:office:word" xmlns:m=3D"http://schemas.microsoft.com/of= fice/2004/12/omml" xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1= 252"> <meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang=3D"EN-GB" link=3D"#0563C1" vlink=3D"#954F72" style=3D"word-wrap:= break-word"> <div class=3D"WordSection1"> Hi all,<o:p></o:p>  <o:p></o:p> We are very happy to announce the next speaker in t= he Nottingham Hearing Sciences Seminar series Prof. Christian Lorenzi,&nbsp= ;professor of experimental psychology at the =C9cole normale sup=E9rieure (ENS, Paris= Sciences & Lettres University) will be speaking on =93Auditory perception of natural soundscapes by no= rmal-hearing and hearing-impaired listeners=94 at 2pm (GMT) on the 15th of June (15/6/2023)= . The seminar will be held over MS Teams:<o:p></o:p> <o:p> </o:p></= span> <a href= =3D"https://teams.microsoft.com/l/meetup-join/19%3ameeting_YTU3OWI0ODItMDkx= Ny00ODVjLWJiMzgtMzNiYzljYjU1YmQ5%40thread.v2/0?context=3D%7b%22Tid%22%3a%22= 67bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%226ea8aa20-734a-4feb= -8e47-1017e90351f2%22%7d">Click here to join the meeting</a> <o:p></o:p> <o:p> </o:p> Speaker bio<o:p></o:p>  <o:p></o:p> Christian Lorenzi was initially trained as an experimenta= l psychologist and auditory psychophysicist at the University Lyon II in France, and as a postdoctoral auditory scientist at = the Medical Research Council in Cambridge and at the Institute of Hearing R= esearch in Glasgow (UK). <o:p></o:p> Christi= an Lorenzi is conducting an interdisciplinary research programme = on human auditory perception. This programme combines various methods from psychophysics, neurosciences, signal processing and c= omputational modelling of the auditory system. Christian Lorenzi = studies how humans detect, discriminate and recognise natural sounds such a= s speech or soundscapes. He studies the auditory perception of two types of temporal modulations of th= e acoustic signal, the temporal envelope and temporal fine structure.</span= > He examines the role of these two cues in auditory scene analysis and sound d= iscrimination, how these cues are processed at each stage of the auditory s= ystem, and the effects of peripheral or central damage, ageing and rehabili= tation systems on the perception of these temporal cues.  <o:p></o= :p> His more recent work has taken an ecological perspective and now fo= cuses on the auditory perception of =93natural soundscapes=94 such as those produced by forests or deserts. He explores o= ur ability to discriminate these soundscapes, perceive changes in habitat, = moment of the day, season and biodiversity, and the effects of sensorineura= l hearing loss on these capacities.  <o:p></o:p></= p>  <o:p></o:p> Abstract<o:p></o:p></= span>  <o:p></o:p></= span> Auditory perception of natural soundscapes by normal-hear= ing and hearing-impaired listeners. Christian Lorenzi, Laboratoire des syst=E8mes perceptifs (UMR CNRS 8248), Ecole normale sup= =E9rieure, Universit=E9 Paris Sciences & Lettres, Paris, France. &= nbsp;<o:p></o:p> =93Natural soundscapes=94 correspond to complex arrangements= of biological and geophysical sounds shaped by habitat-specific sound propagation effects, with marginal contri= bution of sounds generated by human activity (Grinfeder et al., 2022).= The capacity to build a =93perceptual soundscape=94 should be useful = for mapping the close environment, navigating, assessing resources and danger, or more simply building a sense of place and time. H= owever, despite the high adaptive and psychological value of processing nat= ural soundscapes, very little is known about the auditory cues and mec= hanisms at work for humans (Thoret et al., 2020). This is true not only for typical (normal) hearing but also fo= r all forms of hearing disorders. This is quite surprising given the numero= us benefits of exposure to natural sounds, such as improved healt= h and cognitive outcomes, positive affect and decreased stress and annoyance. The goal of the present study was to a= ssess natural soundscape discrimination for human listeners with senso= rineural hearing loss. The ability to discriminate natural soundscapes= recorded in a temperate terrestrial biome (Krause et al., 2011; Thoret et al., 2020) was measured in a group of hear= ing-impaired (HI) listeners with bilateral, mild to severe sensorineural he= aring loss and a group of normal-hearing (NH) controls. Soundscape dis= crimination was measured using a three-interval oddity paradigm and the method of constant stimuli (Apoux et al., 2023).&n= bsp;On each trial, sequences of 2-second recordings varying the habitat, se= ason and period of the day were presented diotically at a nominal SPL of 60= dB except for one HI listener who was tested at a nominal SPL of 80 dB. Discrimination scores were abo= ve chance level for both groups, but they were poorer for HI than NH listen= ers. On average, the scores of HI listeners were relatively well accounted = for by those of NH listeners tested with stimuli spectrally shaped to match the frequency-dependent reduction in audibility= of individual HI listeners. However, the scores of HI listeners were = not significantly correlated with pure-tone audiometric thresholds and age.= These results indicate that the ability to discriminate natural soundscapes associated with changes in habita= t, season and period of the day is disrupted but it is not abolished. The d= eficits of the HI listeners are partly accounted for by reduced audibility.= Supra-threshold auditory deficits and individual listening strategies may also explain differences between NH an= d HI listeners. The implications for hearing aid rehabilitation will be dis= cussed. <o:p></o:p>  <o:p></o:p> References: <o:p></o:p> <sp= an style=3D"font-size:12.0pt;color:black;background:white;mso-ligatures:non= e;mso-fareast-language:EN-GB">Apoux, F., Miller-Viacava, N., F=E9rriere, R.= , Dai, H., Krause, B., Sueur, J. & Lorenzi, C. (2023). Auditory discrimination of natural soundscapes. J. = Acoust. Soc. Am.,&nb= sp;153, 2706-2723. <o:p></o:p> <sp= an style=3D"font-size:12.0pt;color:black;background:white;mso-ligatures:non= e;mso-fareast-language:EN-GB">Grinfeder, E., Lorenzi, C., Haupert, S.,= Sueur, J. 2022. What do we mean by =93soundscape=94? A functional description. Front. Ecol. Evol., 10, 894232 doi: 10.3389/fevo= .2022.894232 <o:p></o:p> <sp= an style=3D"font-size:12.0pt;color:black;background:white;mso-ligatures:non= e;mso-fareast-language:EN-GB">Krause, B., Gage, S.H., Joo, W., 2011. Measur= ing and interpreting the temporal variability in the soundscape at four places in Sequoia National Park. Landsc. Ec= ol., 26, 1247-1256. <o:p></o:p> <sp= an style=3D"font-size:12.0pt;color:black;background:white;mso-ligatures:non= e;mso-fareast-language:EN-GB">Thoret, E., Varnet, L., Boubenec, Y., Ferrier= e, R., Le Tourneau, F.-M., Krause, B., Lorenzi, C., 2020. Characterizing amplitude and frequency modulation cues in natura= l soundscapes: A pilot study in four habitats of a biosphere reserve. = J. Acoust. Soc. Am., 147, 3260-3274. <o:p></o:p> <o:p> </o:p> <o:p> </o:p> Timothy= Beechey Medical Research Fo= undation Fellow<o:p></o:p> Hearing Sciences =96 Scottish Section, <o:p></o:p> Mental Health and Clinical Neurosciences, School of Medicine<o:p></o:= p> University of Nottingham New Lister= Building Level 3, Glasgow Royal Infirmary,  10-16 Alexandra Parade, Glasgow G31 2ER<o:p></o:p> <o:p> </o:p> </div> <PRE> This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please contact the sender and delete the email and attachment.=20 Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. Email communications with the University of Nottingham may be monitored=20 where permitted by law. </PRE></body> </html> --_000_AM6PR06MB6232C85CE1B60EE70C8C81FCCA55AAM6PR06MB6232eurp_--

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