The “consonance effect” and the hemispheres: A study on a split-brain patient

@article{Prete2015TheE,
  title={The “consonance effect” and the hemispheres: A study on a split-brain patient},
  author={Giulia Prete and Mara Fabri and Nicoletta Foschi and Alfredo Brancucci and Luca Tommasi},
  journal={Laterality: Asymmetries of Body, Brain and Cognition},
  year={2015},
  volume={20},
  pages={257 - 269}
}
The association between musical consonance and pleasantness, and between musical dissonance and unpleasantness (“consonance effect”) is well established. Furthermore, a number of studies suggest the main involvement of the left hemisphere in the perception of dissonance and that of the right hemisphere in the perception of consonance. In the present study, the consonance effect was studied in a callosotomized patient, D. D. C. and in a control group. In binaural presentations, the patient did… 

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References

SHOWING 1-10 OF 31 REFERENCES

Cortical deafness to dissonance.

TLDR
The findings suggest that dissonance may be computed bilaterally in the superior temporal gyri by specialized mechanisms prior to its emotional interpretation.

Emotional responses to unpleasant music correlates with damage to the parahippocampal cortex.

TLDR
In this study, pleasant and unpleasant music was presented to 17 patients with variable excisions of the medial temporal lobe, as well as to 19 matched controls; the same patients judged consonant music to be pleasant, and were able to judge music as happy or sad.

Consonance and dissonance of musical chords: neural correlates in auditory cortex of monkeys and humans.

TLDR
The relevance of synchronous phase-locked neural ensemble activity in A1 for the physiological representation of sensory dissonance in humans is supported and the merits of complementary monkey/human studies in the investigation of neural substrates underlying auditory perception are highlighted.

Musical priming by the right hemisphere post-callosotomy

Investigating emotion with music: An fMRI study

TLDR
In all of the mentioned structures, except the hippocampus, activations increased over time during the presentation of the musical stimuli, indicating that the effects of emotion processing have temporal dynamics; the temporal dynamics have so far mainly been neglected in the functional imaging literature.

Neural Correlates of Consonance, Dissonance, and the Hierarchy of Musical Pitch in the Human Brainstem

TLDR
The results suggest that brainstem neural mechanisms mediating pitch processing show preferential encoding of consonant musical relationships and, furthermore, preserve the hierarchical pitch relationships found in music, even for individuals without formal musical training.

Functional specializations for music processing in the human newborn brain

TLDR
Functional MRI is used to measure brain activity in 1- to 3-day-old newborns while they heard excerpts of Western tonal music and altered versions of the same excerpts, demonstrating that the infant brain shows a hemispheric specialization in processing music as early as the first postnatal hours.