Physiological Effects of Music and Sound
Scientific Research/Article.
1
Title
Title
Human brain networks function in connectome-specific harmonic waves
2
Author(s)
Selen Atasoy, Isaac Donnelly, Joel Pearson.
Author(s)
Selen Atasoy, Isaac Donnelly, Joel Pearson.
4
Key Words
#brainnetworks #harmonicpatterns #cerebralcortex #humanconnectome #connectomeharmonics #consciousness
Key Words
#brainnetworks #harmonicpatterns #cerebralcortex #humanconnectome #connectomeharmonics #consciousness
5
Year
2016
Year
2016
3
Abstract
A key characteristic of human brain activity is coherent, spatially distributed oscillations forming behaviour-dependent brain networks. However, a fundamental principle underlying these networks remains unknown. Here we report that functional networks of the human brain are predicted by harmonic patterns, ubiquitous throughout nature, steered by the anatomy of the human cerebral cortex, the human connectome. We introduce a new technique extending the Fourier basis to the human connectome. In this new frequency-specific representation of cortical activity, that we call ‘connectome harmonics’, oscillatory networks of the human brain at rest match harmonic wave patterns of certain frequencies. We demonstrate a neural mechanism behind the self-organization of connectome harmonics with a continuous neural field model of excitatory–inhibitory interactions on the connectome. Remarkably, the critical relation between the neural field patterns and the delicate excitation–inhibition balance fits the neurophysiological changes observed during the loss and recovery of consciousness.
Abstract
A key characteristic of human brain activity is coherent, spatially distributed oscillations forming behaviour-dependent brain networks. However, a fundamental principle underlying these networks remains unknown. Here we report that functional networks of the human brain are predicted by harmonic patterns, ubiquitous throughout nature, steered by the anatomy of the human cerebral cortex, the human connectome. We introduce a new technique extending the Fourier basis to the human connectome. In this new frequency-specific representation of cortical activity, that we call ‘connectome harmonics’, oscillatory networks of the human brain at rest match harmonic wave patterns of certain frequencies. We demonstrate a neural mechanism behind the self-organization of connectome harmonics with a continuous neural field model of excitatory–inhibitory interactions on the connectome. Remarkably, the critical relation between the neural field patterns and the delicate excitation–inhibition balance fits the neurophysiological changes observed during the loss and recovery of consciousness.
1
Title
Title
Effects of vibroacoustic stimulation in music therapy for palliative care patients: a feasibility study
2
Author(s)
Marco Warth, Jens Kessler, Svenja Kotz, Thomas K. Hillecke, Hubert J. Bardenheuer.
Author(s)
Marco Warth, Jens Kessler, Svenja Kotz, Thomas K. Hillecke, Hubert J. Bardenheuer.
4
Key Words
#Musictherapy #Palliativecare #Feasibility #Singingchair #Endoflifecare #Advancedcancerpatients #Heartratevariability #Cancer #Relaxation #Anxoiety
Key Words
#Musictherapy #Palliativecare #Feasibility #Singingchair #Endoflifecare #Advancedcancerpatients #Heartratevariability #Cancer #Relaxation #Anxoiety
5
Year
2015
Year
2015
3
Abstract
The study aimed at examining whether methodological strategies from a previously implemented study design could be transferred to the evaluation of the psychological and physiological effects of a music therapy intervention working with vibroacoustic stimulation in palliative care.
Abstract
The study aimed at examining whether methodological strategies from a previously implemented study design could be transferred to the evaluation of the psychological and physiological effects of a music therapy intervention working with vibroacoustic stimulation in palliative care.
1
Title
Is silence golden? Effects of auditory stimuli and their absence on adult hippocampal neurogenesis
Title
Is silence golden? Effects of auditory stimuli and their absence on adult hippocampal neurogenesis
2
Author(s)
Imke Kirste, Zeina Nicola, Golo Kronenberg, Tara L. Walker, Robert C. Liu, Gerd Kempermann.
Author(s)
Imke Kirste, Zeina Nicola, Golo Kronenberg, Tara L. Walker, Robert C. Liu, Gerd Kempermann.
4
Key Words
#Plasticity #Stemcells #Hippocampus #Mouse #Learning
Key Words
#Plasticity #Stemcells #Hippocampus #Mouse #Learning
5
Year
2013
Year
2013
3
Abstract
We have previously hypothesized that the reason why physical activity increases precursor cell proliferation in adult neurogenesis is that movement serves as non-specific signal to evoke the alertness required to meet cognitive demands. Thereby a pool of immature neurons is generated that are potentially recruitable by subsequent cognitive stimuli. Along these lines, we here tested whether auditory stimuli might exert a similar non-specific effect on adult neurogenesis in mice. We used the standard noise level in the animal facility as baseline and compared this condition to white noise, pup calls, and silence. In addition, as patterned auditory stimulus without ethological relevance to mice we used piano music by Mozart (KV 448). All stimuli were transposed to the frequency range of C57BL/6 and hearing was objectified with acoustic evoked potentials. We found that except for white noise all stimuli, including silence, increased precursor cell proliferation (assessed 24 h after labeling with bromodeoxyuridine, BrdU). This could be explained by significant increases in BrdU-labeled Sox2-positive cells (type-1/2a). But after 7 days, only silence remained associated with increased numbers of BrdU-labeled cells. Compared to controls at this stage, exposure to silence had generated significantly increased numbers of BrdU/NeuN-labeled neurons. Our results indicate that the unnatural absence of auditory input as well as spectrotemporally rich albeit ethological irrelevant stimuli activate precursor cells—in the case of silence also leading to greater numbers of newborn immature neurons—whereas ambient and unstructured background auditory stimuli do not.
Abstract
We have previously hypothesized that the reason why physical activity increases precursor cell proliferation in adult neurogenesis is that movement serves as non-specific signal to evoke the alertness required to meet cognitive demands. Thereby a pool of immature neurons is generated that are potentially recruitable by subsequent cognitive stimuli. Along these lines, we here tested whether auditory stimuli might exert a similar non-specific effect on adult neurogenesis in mice. We used the standard noise level in the animal facility as baseline and compared this condition to white noise, pup calls, and silence. In addition, as patterned auditory stimulus without ethological relevance to mice we used piano music by Mozart (KV 448). All stimuli were transposed to the frequency range of C57BL/6 and hearing was objectified with acoustic evoked potentials. We found that except for white noise all stimuli, including silence, increased precursor cell proliferation (assessed 24 h after labeling with bromodeoxyuridine, BrdU). This could be explained by significant increases in BrdU-labeled Sox2-positive cells (type-1/2a). But after 7 days, only silence remained associated with increased numbers of BrdU-labeled cells. Compared to controls at this stage, exposure to silence had generated significantly increased numbers of BrdU/NeuN-labeled neurons. Our results indicate that the unnatural absence of auditory input as well as spectrotemporally rich albeit ethological irrelevant stimuli activate precursor cells—in the case of silence also leading to greater numbers of newborn immature neurons—whereas ambient and unstructured background auditory stimuli do not.
1
Title
Title
Neurons in primary auditory cortex represent sound source location in a cue-invariant manner
2
Author(s)
Katherine C. Wood, Stephen M. Town, Jennifer K. Bizley.
Author(s)
Katherine C. Wood, Stephen M. Town, Jennifer K. Bizley.
4
Key Words
#Auditorycortex #auditorycorticalneurons #localizations #binaural #soundsourcelocation #spatialtuning
Key Words
#Auditorycortex #auditorycorticalneurons #localizations #binaural #soundsourcelocation #spatialtuning
5
Year
2019
Year
2019
3
Abstract
Auditory cortex is required for sound localisation, but how neural firing in auditory cortex underlies our perception of sound sources in space remains unclear. Specifically, whether neurons in auditory cortex represent spatial cues or an integrated representation of auditory space across cues is not known. Here, we measured the spatial receptive fields of neurons in primary auditory cortex (A1) while ferrets performed a relative localisation task. Manipulating the availability of binaural and spectral localisation cues had little impact on ferrets’ performance, or on neural spatial tuning. A subpopulation of neurons encoded spatial position consistently across localisation cue type. Furthermore, neural firing pattern decoders outperformed two-channel model decoders using population activity. Together, these observations suggest that A1 encodes the location of sound sources, as opposed to spatial cue values.
Abstract
Auditory cortex is required for sound localisation, but how neural firing in auditory cortex underlies our perception of sound sources in space remains unclear. Specifically, whether neurons in auditory cortex represent spatial cues or an integrated representation of auditory space across cues is not known. Here, we measured the spatial receptive fields of neurons in primary auditory cortex (A1) while ferrets performed a relative localisation task. Manipulating the availability of binaural and spectral localisation cues had little impact on ferrets’ performance, or on neural spatial tuning. A subpopulation of neurons encoded spatial position consistently across localisation cue type. Furthermore, neural firing pattern decoders outperformed two-channel model decoders using population activity. Together, these observations suggest that A1 encodes the location of sound sources, as opposed to spatial cue values.
1
Title
Title
Bio-soliton model that predicts non-thermal electromagnetic frequency bands, that either stabilize or destabilize living cells
2
Author(s)
J. H. Geesink, D. K. F. Meijer.
Author(s)
J. H. Geesink, D. K. F. Meijer.
4
Key Words
#solitonsbiology #quantumdynamics #quantumcoherence #eigenfrequencies #phonons #excitons #electrons #photons #coherence #BoseEinsteincondensates #toroidalcoupling #repair #Fröhlich #Davydov #Pang #Belyaev
Key Words
#solitonsbiology #quantumdynamics #quantumcoherence #eigenfrequencies #phonons #excitons #electrons #photons #coherence #BoseEinsteincondensates #toroidalcoupling #repair #Fröhlich #Davydov #Pang #Belyaev
5
Year
2017
Year
2017
6
PDF
7
Link:
Link:
3
Abstract
Solitons, as self-reinforcing solitary waves, interact with complex biological phenomena such as cellular self-organization. A soliton model is able to describe a spectrum of electromagnetism modalities that can be applied to understand the physical principles of biological effects in living cells, as caused by endogenous and exogenous electromagnetic fields and is compatible with quantum coherence. A bio-soliton model is proposed, that enables to predict which eigen- frequencies of non-thermal electromagnetic waves are life-sustaining and which are, in contrast, detrimental for living cells. The particular effects are exerted by a range of electromagnetic wave eigen-frequencies of one-tenth of a Hertz till Peta Hertz that show a pattern of 12 bands, and can be positioned on an acoustic reference frequency scale. The model was substantiated by a meta- analysis of 240 published articles of biological electromagnetic experiments, in which a spectrum of non-thermal electromagnetic waves were exposed to living cells and intact organisms. These data support the concept of coherent quantized electromagnetic states in living organisms and the theories of Fröhlich, Davydov and Pang. It is envisioned that a rational control of shape by soliton-waves and related to a morphogenetic field and parametric resonance provides positional information and cues to regulate organism-wide systems properties like anatomy, control of reproduction and repair.
Abstract
Solitons, as self-reinforcing solitary waves, interact with complex biological phenomena such as cellular self-organization. A soliton model is able to describe a spectrum of electromagnetism modalities that can be applied to understand the physical principles of biological effects in living cells, as caused by endogenous and exogenous electromagnetic fields and is compatible with quantum coherence. A bio-soliton model is proposed, that enables to predict which eigen- frequencies of non-thermal electromagnetic waves are life-sustaining and which are, in contrast, detrimental for living cells. The particular effects are exerted by a range of electromagnetic wave eigen-frequencies of one-tenth of a Hertz till Peta Hertz that show a pattern of 12 bands, and can be positioned on an acoustic reference frequency scale. The model was substantiated by a meta- analysis of 240 published articles of biological electromagnetic experiments, in which a spectrum of non-thermal electromagnetic waves were exposed to living cells and intact organisms. These data support the concept of coherent quantized electromagnetic states in living organisms and the theories of Fröhlich, Davydov and Pang. It is envisioned that a rational control of shape by soliton-waves and related to a morphogenetic field and parametric resonance provides positional information and cues to regulate organism-wide systems properties like anatomy, control of reproduction and repair.