| dbo:abstract |
Deutsch's scale illusion is an auditory illusion in which two series of unconnected notes appear to combine into a single recognisable melody, when played simultaneously into the left and right ears of a listener. The illusion is produced by simultaneous ascending and descending major scales beginning in separate stereo channels with each successive note being switched to the opposite channel. With the left channel: C'-D-A-F--A-D-C'; and the right: C-B-E-G-E-B-C; the ear hears both: C'-B-A-G--A-B-C'; and: C-D-E-F--E-D-C. The tones are equal-amplitude sine waves, and the sequence is played repeatedly without pause at a rate of four tones per second. When listening to the illusion over headphones, most right-handers hear a melody corresponding to the higher tones as on the right and a melody corresponding to the lower tones as on the left. When the earphone positions are reversed, the higher tones continue to appear to be coming from the right and the lower tones from the left. Other people experience different illusions, such as the higher tones on the left and the lower tones on the right, or a pattern in which the sounds appear to be localized in different and changing ways. Right-handers and left-handers differ statistically in how the scale illusion is perceived. The effect was discovered by Diana Deutsch in 1973. In a clinical study, patients with hemispatial neglect were shown to experience the scale illusion. Further, in an MEG study on normal listeners the scale illusion was found to be neurally represented at or near the auditory cortex. (en) |
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http://philomel.com/pdf/MP-1985_3_127-154.pdf http://deutsch.ucsd.edu/pdf/Frontiers_HN-2008_1_1-6.pdf http://deutsch.ucsd.edu/pdf/PLOS_ONE_2013.pdf http://deutsch.ucsd.edu/pdf/PsyMus_3_Ch6_Grouping_Mechanisms.pdf http://deutsch.ucsd.edu/scale_illusion http://philomel.com/musical_illusions/play.php%3Fs=1&fname=Scale_illusion http://philomel.com/pdf/Audiomag-1987.pdf http://philomel.com/pdf/JASA-1975_57_1156-1160.pdf http://philomel.com/pdf/PandP-1979_25_399-405.pdf http://scitation.aip.org/vsearch/servlet/VerityServlet%3FKEY=ASADL&smode=strresults&sort=chron&maxdisp=25&threshold=0&pjournals=journals&pjournals=JASMAN&pjournals=ARLOFJ&pjournals=NOCOAN&pjournals=SOUCAU&possible1=An%20illusion%20with%20musical%20scales.%20&possible1zone=title&OUTLOG=NO&viewabs=JASMAN&key=DISPLAY&docID=1&page=1&chapter=0 http://scitation.aip.org/vsearch/servlet/VerityServlet%3FKEY=ASADL&smode=strresults&sort=chron&maxdisp=25&threshold=0&pjournals=journals&pjournals=JASMAN&pjournals=ARLOFJ&pjournals=NOCOAN&pjournals=SOUCAU&possible1=Two-channel%20listening%20to%20musical%20scales.%20%0D%0A&possible1zone=title&OUTLOG=NO&viewabs=JASMAN&key=DISPLAY&docID=1&page=1&chapter=0 |
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dbr:Melody dbr:Left-handedness dbr:Stereophonic_sound dbr:Hemispatial_neglect dbr:Major_scale dbc:Auditory_illusions dbr:Handedness dbr:Repeat_sign dbr:Rest_(music) dbr:Headphone dbc:Music_psychology dbr:Diana_Deutsch dbr:Auditory_illusion dbr:Ogg dbr:Sine_wave dbr:Right-handedness dbr:Note_(music) dbr:Stereo_channel |
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InternetArchiveBot (en) |
| dbp:date |
July 2019 (en) November 2019 (en) |
| dbp:description |
The above example, played first a channel at a time, then simultaneously. The full illusion, as originally developed by Deutsch, is linked below. (en) |
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Deutsch scale illusion.ogg (en) |
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yes (en) |
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dbr:Ogg |
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Sound sample (en) |
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dbc:Auditory_illusions dbc:Music_psychology |
| gold:hypernym |
dbr:Illusion |
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owl:Thing yago:WikicatAuditoryIllusions yago:Abstraction100002137 yago:Appearance105939432 yago:Cognition100023271 yago:Content105809192 yago:Illusion105939636 yago:PsychologicalFeature100023100 yago:Representation105926676 dbo:Film |
| rdfs:comment |
Deutsch's scale illusion is an auditory illusion in which two series of unconnected notes appear to combine into a single recognisable melody, when played simultaneously into the left and right ears of a listener. The effect was discovered by Diana Deutsch in 1973. In a clinical study, patients with hemispatial neglect were shown to experience the scale illusion. Further, in an MEG study on normal listeners the scale illusion was found to be neurally represented at or near the auditory cortex. (en) |
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Deutsch's scale illusion (en) |
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