Preferred Tempo and Low-Audio-Frequency Bias Emerge From Simulated Sub-cortical Processing of Sounds With a Musical Beat

@article{Zuk2018PreferredTA,
  title={Preferred Tempo and Low-Audio-Frequency Bias Emerge From Simulated Sub-cortical Processing of Sounds With a Musical Beat},
  author={Nathaniel J. Zuk and Laurel H. Carney and Edmund C. Lalor},
  journal={Frontiers in Neuroscience},
  year={2018},
  volume={12}
}
Prior research has shown that musical beats are salient at the level of the cortex in humans. Yet below the cortex there is considerable sub-cortical processing that could influence beat perception. Some biases, such as a tempo preference and an audio frequency bias for beat timing, could result from sub-cortical processing. Here, we used models of the auditory-nerve and midbrain-level amplitude modulation filtering to simulate sub-cortical neural activity to various beat-inducing stimuli, and… 

Beat-Relevant Signals in Auditory Cortical Responses to Musical Excerpts

TLDR
It is found that low-level processes even substantially explain the emergence of beat in real music, and firing rates in the rat auditory cortex in response to twenty musical excerpts were on average higher on the beat than off the beat tapped by human listeners.

Auditory cortical representation of music favours the perceived beat

TLDR
Evidence is presented that the auditory cortical representation of music, even in the absence of motor or top-down activations, already favours the beat that will be perceived, and that the ‘bottom-up’ processing of music performed by the auditory system predisposes the timing and clarity of the perceived musical beat.

Attention affects overall gain but not selective contrast at meter frequencies in the neural processing of rhythm

TLDR
The results demonstrate that selective contrast at meter periodicities involves higher-level neural processes that may be engaged automatically, irrespective of behavioral context, and might contribute to spontaneous and effortless synchronization to musical meter in humans across cultures.

Rhythm judgments reveal a frequency asymmetry in the perception and neural coding of sound synchrony

TLDR
This work compares rhythm and synchrony perception between low- and high-frequency tones, using both behavioral and EEG techniques and proposes that this asymmetry exists to compensate for inherent and variable time delays in cochlear processing, as well as the acoustical properties of sound sources in the natural environment, thereby providing veridical perceptual experiences of simultaneity.

Envelope reconstruction of speech and music highlights stronger tracking of speech at low frequencies

TLDR
A novel method of frequency-constrained reconstruction of stimulus envelopes using EEG recorded during passive listening finds that speech was reconstructed better than music for all frequencies the authors examined, suggesting an origin from speech-specific processing in the brain.

Envelope reconstruction of speech and music highlights unique tracking of speech at low frequencies

TLDR
A novel method of frequency-constrained reconstruction of stimulus envelopes using EEG recorded during passive listening finds that speech was reconstructed better than music for all frequencies the authors examined, highlighting the importance of low-frequency speech tracking.

Feel the bass: Music presented to tactile and auditory modalities increases aesthetic appreciation and body movement.

TLDR
Findings suggest that bass felt in the body produces a multimodal auditory-tactile percept that promotes movement through the close connection between tactile and motor systems.

Spatial Connectivity and Temporal Dynamic Functional Network Connectivity of Musical Emotions Evoked by Dynamically Changing Tempo

TLDR
The paired t-test showed that music with a decreasing tempo evokes stronger activation of ICs within DMN and SMN than that with an increasing tempo, which indicated that faster music is more likely to enhance listeners’ emotions with multifunctional brain activities even when the tempo is slowing down.

The algorithm of the electric stimulator VEB-1 software operation

TLDR
The software solutions allowed us to provide the needed precision to maintain the operating frequency of the electric current pulses that penetrate through the human body on the level not less than 0,001Hz.

References

SHOWING 1-10 OF 79 REFERENCES

Midbrain adaptation may set the stage for the perception of musical beat

TLDR
Evidence from a rodent model that midbrain preprocessing of sounds may already be shaping where the beat is ultimately felt is presented, suggesting that mid brain adaptation, by encoding the temporal context of sounds, creates points of neural emphasis that may influence the perceptual emergence of a beat.

What can we learn about beat perception by comparing brain signals and stimulus envelopes?

TLDR
It is shown that frequency-domain representations of rhythms are sensitive to the acoustic features of the tones making up the rhythms (tone duration, onset/offset ramp duration); in fact, relative amplitudes at beat-related frequencies can be completely reversed by manipulating tone acoustics.

Neural processing of amplitude-modulated sounds.

TLDR
The picture that emerges is that temporal modulations are a critical stimulus attribute that assists us in the detection, discrimination, identification, parsing, and localization of acoustic sources and that this wide-ranging role is reflected in dedicated physiological properties at different anatomical levels.

Selective Neuronal Entrainment to the Beat and Meter Embedded in a Musical Rhythm

TLDR
The observation that beat- and meter-related SS-EPs are selectively enhanced at frequencies compatible with beat and meter perception indicates that these responses do not merely reflect the physical structure of the sound envelope but, instead, reflect the spontaneous emergence of an internal representation of beat.

Neural Entrainment to the Beat: The “Missing-Pulse” Phenomenon

TLDR
The emergence of neural oscillations at the pulse frequency, which can be related to pulse perception, is demonstrated and rule out alternative explanations for neural entrainment and provide evidence linking neural synchronization to the perception of pulse, a widely debated topic in recent years.

Neural Entrainment to the Rhythmic Structure of Music

TLDR
A role for neural entrainment in tracking the metrical structure of real music is supported and that neural meter tracking can be disrupted by the presentation of contradictory rhythmic cues is shown.

Rhythm judgments reveal a frequency asymmetry in the perception and neural coding of sound synchrony

TLDR
This work compares rhythm and synchrony perception between low- and high-frequency tones, using both behavioral and EEG techniques and proposes that this asymmetry exists to compensate for inherent and variable time delays in cochlear processing, as well as the acoustical properties of sound sources in the natural environment, thereby providing veridical perceptual experiences of simultaneity.

Superior time perception for lower musical pitch explains why bass-ranged instruments lay down musical rhythms

TLDR
The neural basis of carrying rhythmic timing information in lower-pitched voices is investigated and a biologically plausible model of the auditory periphery suggest that nonlinear cochlear dynamics contribute to the observed effect.

Neural Networks for Beat Perception in Musical Rhythm

TLDR
A neurodynamic model is described that shows how self-organization of oscillations in interacting sensory and motor networks could be responsible for the formation of the pulse percept in complex rhythms and provides a theoretical link between oscillatory neurodynamics and the induction of pulse and meter in musical rhythm.
...