Subject: Re: [AUDITORY] Natural experiment example needed From: Wolfgang Ellermeier <ellermeier@xxxxxxxx> Date: Sat, 5 Apr 2025 08:45:50 +0200This is a multi-part message in MIME format. --------------UpF0F4Nehn07ATPP8AYqsw5A Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Here's my favourite record of a 'natural experiment' (Derryberry et al., Science 2020) due to the changes in the acoustical environment produced by COVID (air) traffic measures. I have occasionally used it in teaching: https://www.science.org/doi/10.1126/science.abd5777 Californian songbirds adapting the acoustics of their songs (level, spectrum, complexity) to the dramatically changed soundscapes! Wolfgang Am 04.04.2025 um 19:23 schrieb Huron, David: > In teaching research methods to music-psychology students, for years I > have illustrated a "natural experiment" by discussing how shutting > down air traffic in the aftermath of 9/11 allowed climate scientists > to determine the effect of aircraft vapor trails on earth's overall > temperature. (Do vapor trails cool the earth by blocking sunlight, or > is the net effect to warm the earth by blocking reflected surface heat > from radiating into space?) > > I'd like to have an updated example, preferably something we learned > about music or hearing arising from Covid isolation -- something > students could better relate to. > > Any suggestions? > > Cheers, > David Huron > -- Prof. Wolfgang Ellermeier, Ph.D. Institut fuer Psychologie Technische Universitaet Darmstadt Alexanderstr. 10 D - 64283 DARMSTADT, Germany phone: ++49-6151-1624103 phone (secr.): ++49-6151-1624012 E-mail: ellermeier@xxxxxxxx http://www.psychologie.tu-darmstadt.de/ellermeier --------------UpF0F4Nehn07ATPP8AYqsw5A Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <div class="moz-cite-prefix">Here's my favourite record of a 'natural experiment' (Derryberry et al., Science 2020) due to the changes in the acoustical environment produced by COVID (air) traffic measures. I have occasionally used it in teaching:<br> </div> <div class="moz-cite-prefix"><br> </div> <div class="moz-cite-prefix"><a class="moz-txt-link-freetext" href="https://www.science.org/doi/10.1126/science.abd5777">https://www.science.org/doi/10.1126/science.abd5777</a></div> <div class="moz-cite-prefix"><br> </div> <div class="moz-cite-prefix">Californian songbirds adapting the acoustics of their songs (level, spectrum, complexity) to the dramatically changed soundscapes!</div> <div class="moz-cite-prefix"><br> </div> <div class="moz-cite-prefix">Wolfgang<br> </div> <div class="moz-cite-prefix"><br> </div> <div class="moz-cite-prefix">Am 04.04.2025 um 19:23 schrieb Huron, David:<br> </div> <blockquote type="cite" cite="mid:SN7PR01MB8186B6098E1601F12AB97C50B8A92@xxxxxxxx"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style type="text/css" style="display:none;">P {margin-top:0;margin-bottom:0;}</style> <span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">In teaching research methods to music-psychology students, for years I have illustrated a "natural experiment" by discussing how shutting down air traffic in the aftermath of 9/11 allowed climate scientists to determine the effect of aircraft vapor trails on earth's overall temperature. (Do vapor trails cool the earth by blocking sunlight, or is the net effect to warm the earth by blocking reflected surface heat from radiating into space?)</span> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> I'd like to have an updated example, preferably something we learned about music or hearing arising from Covid isolation -- something students could better relate to.</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Any suggestions?</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Cheers,</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> David Huron</div> <div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br> </div> </blockquote> <p><br> </p> <div class="moz-signature">-- <br> Prof. Wolfgang Ellermeier, Ph.D. <br> Institut fuer Psychologie <br> Technische Universitaet Darmstadt <br> Alexanderstr. 10 <br> D - 64283 DARMSTADT, Germany <br> <p> phone: ++49-6151-1624103 <br> phone (secr.): ++49-6151-1624012 <br> E-mail: <a class="moz-txt-link-abbreviated" href="mailto:ellermeier@xxxxxxxx">ellermeier@xxxxxxxx</a> <br> <a class="moz-txt-link-freetext" href="http://www.psychologie.tu-darmstadt.de/ellermeier">http://www.psychologie.tu-darmstadt.de/ellermeier</a><br> </p> </div> </body> </html> --------------UpF0F4Nehn07ATPP8AYqsw5A--