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Titolo:
The cerebral haemodynamics of music perception - A transcranial Doppler sonography study
Autore:
Evers, S; Dannert, J; Rodding, D; Rotter, G; Ringelstein, EB;
Indirizzi:
Univ Munster, Dept Neurol, D-48129 Munster, Germany Univ Munster MunsterGermany D-48129 pt Neurol, D-48129 Munster, Germany Univ Dortmund, Dept Mus, Dortmund, Germany Univ Dortmund Dortmund Germany iv Dortmund, Dept Mus, Dortmund, Germany
Titolo Testata:
BRAIN
, volume: 122, anno: 1999,
parte:, 1
pagine: 75 - 85
SICI:
0006-8950(199901)122:<75:TCHOMP>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
BLOOD-FLOW VELOCITY; LEFT-HEMISPHERE; COGNITIVE TASKS; DOMINANCE; ASYMMETRY; LATERALIZATION; SPEECH; MELODIES; EEG; SPECIALIZATION;
Keywords:
music perception; transcranial Doppler sonography; hemispheric lateralization; cerebral haemodynamics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
63
Recensione:
Indirizzi per estratti:
Indirizzo: Evers, S Univnyunster, Dept Neurol, Albert Schweitzer Str 33, D-48129 Munster, Germa Univ Munster Albert Schweitzer Str 33 Munster Germany D-48129 ma
Citazione:
S. Evers et al., "The cerebral haemodynamics of music perception - A transcranial Doppler sonography study", BRAIN, 122, 1999, pp. 75-85

Abstract

The perception of music has been investigated by several neurophysiological and neuroimaging methods, Results from these studies suggest a right hemisphere dominance for non-musicians and a possible left hemisphere dominancefor musicians, However, inconsistent results have been obtained, and not ail variables have been controlled by the different methods. We performed a study with functional transcranial Doppler sonography (fTCD) of the middle cerebral artery to evaluate changes in cerebral blood flow velocity (CBFV) during different periods of music perception. Twenty-four healthy right-handed subjects were enrolled and examined during rest and during listening toperiods of music with predominant language, rhythm and harmony content. The gender, musical experience and mode of listening of the subjects were chosen as independent factors; the type of music was included as the variable in repeated measurements. We observed a significant increase of CBFV in theright hemisphere in non-musicians during harmony perception but not duringrhythm perception; this effect was more pronounced in females. Language perception was lateralized to the left hemisphere in ail subject groups. Musicians showed increased CBFV values in the left hemisphere which were independent of the type of stimulus, and background listeners showed increased CBFV values during harmony perception in the right hemisphere which were independent of their musical experience. The time taken to reach the peak of CBFV was significantly longer in non-musicians when compared with musicians during rhythm and harmony perception. Pulse rates were significantly decreased in non-musicians during harmony perception, probably due to a specific relaxation effect in this subgroup. The resistance index did not show any significant differences, suggesting only regional changes of small resistancevessels but not of large arteries, Our fTCD study confirms previous findings of right hemisphere lateralization for harmony perception in non-musicians. In addition, we showed that this effect is more pronounced in female subjects and in background listeners and that the lateralization is delayed in nonmusicians compared with musicians for the perception of rhythm and harmony stimuli. Our data suggest that musicians and non-musicians have different strategies to lateralize musical stimuli, with a delayed but marked right hemisphere lateralization during harmony perception in non-musicians andan attentive mode of listening contributing to a left hemisphere lateralization in musicians.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 02:46:14