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  • Acoustical Society of America (ASA)  (17)
  • Linguistics  (17)
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  • Acoustical Society of America (ASA)  (17)
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  • Linguistics  (17)
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  • 1
    Online Resource
    Online Resource
    Ontogenetic development of mechanosensory ability of a pomacentrid coral fish, the red saddleback clownfish ( Amphiprion   ephippium )
    Acoustical Society of America (ASA) ; 2002
    In:  The Journal of the Acoustical Society of America Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2204-2204
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2204-2204
    Abstract: Recent work on the settlement of coral reef fish suggests that ambient sound could be used as a cue for navigation by the pelagic larvas of reef fishes. Coral reef fish larvas made directional movements toward sound stimulus indicating they are capable of detecting and localizing sound. These findings suggest that some degrees of hearing abilities must have developed prior to settlement. We used embryos and newly hatched larvas of a clown fish (Amphiprion ephippium) to investigate the ontogenetic development of the auditory function of this fish. The heart beat rates of embryos and newly hatched larvas (up to 7 days after hatching) in response to various frequencies of sound were measured to indicate their reaction to mechanosensory stimuli. The auditory brainstem response (ABR) recording protocol was used to measure acoustically evoked potentials of Day-8 to Day-36 larvas. Preliminary findings indicate that both the embryos’ and larvas reaction to sound stimuli improved (both frequency range and sound pressure level) throughout the development. The electrophysiological observations on embryos and larvas of Amphiprion ephippium provide evidence to support the hypothesis that acoustic stimuli could be used as a cue for coral reef larval fish migration use. [Work supported by NIH, NOHR, IMLS, NERC, AIMS.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4778672
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2002
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 2
    Online Resource
    Online Resource
    Shaveless focused-ultrasound-induced blood-brain barrier opening in mice
    Acoustical Society of America (ASA) ; 2023
    In:  The Journal of the Acoustical Society of America Vol. 153, No. 3_supplement ( 2023-03-01), p. A140-A140
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 3_supplement ( 2023-03-01), p. A140-A140
    Abstract: To demonstrate that focused ultrasound-induced blood-brain barrier opening (FUS-BBBO) in mice can be achieved without shaving hairs. We performed FUS-BBBO in mice by using oil as the coupling medium without shaving hairs. The hydrophobic nature of oil leads to a higher affinity to hair than water-based ultrasound gel. FUS-BBBO outcome was compared under three conditions: “oil + hairs,” “gel + hairs,” and “gel + no hairs.” T2-weighted, T1-weighted MRI, and fluorescence imaging of the ex vivo brain slices were performed to measure the quality of coupling and outcome of FUS-BBBO. Results showed that “oil + hairs” consistently achieved high-quality acoustic coupling without trapping air bubbles (Figures A & B). FUS-BBBO outcome was not significantly different between the “oil + hairs” group and the “gel + no hairs” group based on T1-weighted MRI (Figures C & D) and ex vivo fluorescence imaging (Figure E). The FUS-BBBO efficiencies for both the “oil + hairs” and “gel + no hairs” groups were significantly higher than the “gel + hairs” group. This study demonstrated that FUS-BBBO in mice could be achieved without shaving hairs. Oil provides a simple solution for achieving effective acoustic coupling for transcranial FUS procedures.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0018435
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 3
    Online Resource
    Online Resource
    The importance of sound for navigation at settlement in coral reef fishes, with reference to the development of the auditory response
    Acoustical Society of America (ASA) ; 2002
    In:  The Journal of the Acoustical Society of America Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2204-2205
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2204-2205
    Abstract: The behavioral mechanisms that larval coral reef fishes employ to locate suitable settlement habitats on their return from the plankton are poorly understood. The response of settlement-stage reef fishes to reef noise was studied at Lizard Island, Great Barrier Reef, Australia. Catches of fishes in light traps attached to underwater speakers playing reef sounds were twice those of silent traps. To demonstrate that this attraction is important during settlement, sound was used to favorably attract settlers to noisy (over silent) artificial reefs. Many coral reef fish families lay eggs demersally on the reef. By monitoring the heart rates of clownfish embryos in response to artificial noise signals, a broadening of the spectral range of response and a lowering of the threshold of response (an increase in sensitivity) was identified during their development. The thresholds suggest that these embryonic fish will have experienced coral reef noises prior to leaving the reef. These studies clearly demonstrate the use of sound as a navigation cue for settlement-stage coral reef fishes, and suggest the potential for imprinting. Our findings not only have major implications for how we model recruitment, but also offer some potential management tools for reef systems. [Work supported by Natural Environment Research Council (UK), British Association, Australian Institute of Marine Science, National Organization for Hearing Research (USA), Institute of Museum and Library Services (USA), Department of Education (USA).]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4778677
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2002
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 4
    Online Resource
    Online Resource
    Dynamics of focused ultrasound-enhanced glymphatic transportation in the mouse brain
    Acoustical Society of America (ASA) ; 2023
    In:  The Journal of the Acoustical Society of America Vol. 153, No. 3_supplement ( 2023-03-01), p. A140-A140
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 3_supplement ( 2023-03-01), p. A140-A140
    Abstract: The glymphatic system, a perivascular network in the brain, regulates the exchange of cerebrospinal fluid and interstitial fluid in the perivascular space. Focused ultrasound combined with microbubbles (FUSMB) has been recently shown feasible to manipulate the glymphatic transportation by enhancing the intranasal delivery of agents in the perivascular space. The objective of this study was to reveal the dynamics of FUSMB-enhanced agent transport in the glymphatic system. A ring-shaped FUS transducer was confocally aligned with an objective of a two-photon microscope (2PM). Fluorescently labeled albumin was administered to the mouse nose, where it transported along olfactory nerve and trigeminal nerve from nose to brain and then spread in perivascular space in the brain. FUS sonication was performed after intravenous injection of microbubbles. In vivo 2PM recorded the dynamics of agent transportation before, during, and after FUS sonication. Time-lapse recording showed that FUSMB enhanced the agent accumulation at the perivascular space. FUS significantly increased the accumulation of the agent in the perivascular space by 1.2-folds immediately after the sonication (p = 0.0325), and 1.6-folds at 5 min after the sonication (p  & lt; 0.0001). In conclusion, this study showed, for the first time, direct evidence of FUSMB-enhanced glymphatic transportation in the mouse brain.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0018432
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 5
    Online Resource
    Online Resource
    Auditory brainstem response (ABR), a noninvasive electrophysiological method for the study of hearing ability of fishes
    Acoustical Society of America (ASA) ; 2002
    In:  The Journal of the Acoustical Society of America Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2314-2314
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 112, No. 5_Supplement ( 2002-11-01), p. 2314-2314
    Abstract: Over the past 100+ years several methods have been used to study hearing ability of fish. Behavioral (psychophysical) methods including food reward, barrier crossing, and electrical shock conditioning are used to train fish to respond to sound. Invasive-type of electrophysiological methods include single unit and microphonics recordings. In 1996, my laboratory developed auditory brainstem response (ABR) recording technique, an electrophysiological far-field recording method, to record acoustically evoked brainstem potentials from fish. This noninvasive method overcomes the major limitations of traditional behavioral (prolonged training period; erratic behavioral response) and electrophysiological (invasive surgery) methods. The ABR recording can be achieved easily with assemblage of conventional electrophysiological devices with the aid of computer programs. Since the development of this noninvasive electrophysiological recording method, it has been widely adopted by many laboratories around the world to study fish hearing. The role of gasbladder in hearing enhancement, the ontogenetic development of hearing ability of embryo and larval fish, the impacts of noise exposure on threshold shifts, the effect of aging on hearing all have been understood with the use of ABR method. This quick pace of achievement cannot be obtained without the use of this noninvasive recording technique. [Work supported by NIH, NOHR, IMLS.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4779326
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2002
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 6
    Online Resource
    Online Resource
    Behavioral responses of two captive bottlenose dolphins ( Tursiops truncatus ) to a continuous 50 kHz tone
    Acoustical Society of America (ASA) ; 2012
    In:  The Journal of the Acoustical Society of America Vol. 131, No. 2 ( 2012-02-01), p. 1643-1649
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 2 ( 2012-02-01), p. 1643-1649
    Abstract: At present, the fundamental frequencies of signals of most commercially available acoustic alarms to deter small cetaceans are below 20 kHz, but it is not well ascertained whether higher frequencies have a deterrent effect on bottlenose dolphins (Tursiops truncatus). Two captive bottlenose dolphins housed in a floating pen were subjected to a continuous pure tone at 50 kHz with a source level of 160 ± 2 dB (re 1 μPa, rms). The behavioral responses of dolphins were judged by comparing surfacing distance relative to the sound source, number of surfacings, and number of echolocation clicks produced, during forty 15 min baseline periods with forty 15 min test periods (four sessions per day, 40 sessions in total). On all 10 study days, surfacing distance and the number of surfacings increased while click production decreased during broadcasts of test sound. The avoidance threshold sound pressure level for a continuous 50 kHz tone for the bottlenose dolphins, in the context of this study, was estimated to be 144 ± 2 dB (re 1 μPa, rms). The results indicated that a continuous 50 kHz tonal signal can deter bottlenose dolphins from an area.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.3675945
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2012
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 7
    Online Resource
    Online Resource
    Measurement and simulation of acoustic radiation force on a planar reflector
    Acoustical Society of America (ASA) ; 2014
    In:  The Journal of the Acoustical Society of America Vol. 135, No. 5 ( 2014-05-01), p. 2553-2558
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 135, No. 5 ( 2014-05-01), p. 2553-2558
    Abstract: The accurate calculation of the acoustic radiation force is important for ultrasonic application techniques. Usually, the acoustic radiation force can be divided into the near-field and the far-field force according to the ratio of the emitter-reflector distance to the wavelength. In this study, appropriate theories and methods are explored to simulate the far-field and the near-field acoustic radiation force exerted on a planar reflector. The comparison between simulation and experiment indicates that the far-field force is not sensitive to the boundary shape and size while the near-field force is highly sensitive to the boundary size. Only the acoustic model with the minimized boundary size could yield the near-field force consistent with the experiment. Further calculations reveal that the far-field force first increases and then decreases with the rise of the reflector radius, and that the near-field force fluctuates with the acoustic frequency, especially when the emitter-reflector distance is very small. The near-field repulsive force can be changed into the attractive force when the acoustic frequency is lowered.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4869678
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2014
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 8
    Online Resource
    Online Resource
    Evaluation of sonobiopsy feasibility and safety in a mouse model of diffuse intrinsic pontine glioma
    Acoustical Society of America (ASA) ; 2024
    In:  The Journal of the Acoustical Society of America Vol. 155, No. 3_Supplement ( 2024-03-01), p. A22-A22
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 155, No. 3_Supplement ( 2024-03-01), p. A22-A22
    Abstract: Diffuse intrinsic pontine glioma (DIPG) is a leading cause of pediatric brain cancer mortality, emphasizing the need for precise molecular diagnosis to advance therapeutic development. The tumor's location in the brainstem poses challenges for invasive biopsy, prompting the exploration of liquid biopsies. However, both blood-based and cerebrospinal fluid (CSF)-based liquid biopsies exhibit limited sensitivity in diagnosing DIPG. Sonobiopsy, an innovative technique utilizing focused ultrasound and microbubbles, aims to enhance the sensitivity of liquid biopsies. This study assessed the feasibility and safety of sonobiopsy in a DIPG mouse model. The model was established by intracranial injection of enhanced green-fluorescent-protein (eGFP) transduced DIPG tumor cells. Mice were divided into sonobiopsy and conventional liquid biopsy groups. Sonobiopsy, employing MRI-guided focused ultrasound and microbubbles, demonstrated increases in plasma and CSF eGFP DNA, RNA, and protein concentrations compared to conventional liquid biopsy. The enrichment effect varied based on the biomarker type. No observed hemorrhage or tissue damage attributed to sonication suggests the safety of this approach. These results affirm the feasibility and safety of sonobiopsy in enriching DIPG-specific biomarkers in both plasma and CSF, suggesting sonobiopsy as a promising noninvasive molecular diagnostic tool for DIPG.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0026654
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2024
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 9
    Online Resource
    Online Resource
    Transcranial cavitation localization by time difference of arrival algorithm using four sensors
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2560-2560
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2560-2560
    Abstract: Cavitation is widely existing in focused ultrasound (FUS)-mediated therapies in the brain, such as FUS in combination with microbubble-induced blood-brain barrier disruption, nonthermal ablation, as well as transcranial histotripsy therapy. Accurately knowing the 3-D location of cavitation in real time can improve the treatment targeting accuracy and avoid off-target tissue damage. However, the skull induces strong phase and amplitude aberration to the cavitation signals and presents a significant challenge to the transcranial cavitation localization. Existing techniques for 3-D cavitation localization use hemispherical multi-element arrays combined with passive beamforming and adaptive skull-specific correction algorithm. However, these techniques require expensive equipment and treatment planning. Their time-consuming computations limit applications in real-time cavitation monitoring, which is critically needed to ensure the safety and efficacy of the FUS treatment. The object of this study was to investigate the feasibility of using a four-sensor network to transcranially locate the cavitation source in 3-D by time difference of arrival algorithm. The positional error of transcranial cavitation localization with the human skull along x, y, and z axes were 1.7 ± 1.2 mm, 1.6 ± 1.7 mm, and 4.1 ± 1.5 mm, respectively. For comparison, the positional error of without the human skull were 1.2 ± 1.8 mm, 0.9 ± 1.6 mm, and 3.1 ± 2.3 mm, respectively.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.5147104
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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  • 10
    Online Resource
    Online Resource
    Affordable stereotactic-guided focused ultrasound device for tunable drug delivery to the mouse brain
    Acoustical Society of America (ASA) ; 2021
    In:  The Journal of the Acoustical Society of America Vol. 150, No. 4_Supplement ( 2021-10-01), p. A129-A129
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 150, No. 4_Supplement ( 2021-10-01), p. A129-A129
    Abstract: Focused ultrasound combined with microbubble (FUS+MB)-mediated blood brain barrier (BBB) opening is not only a promising technique for clinical applications but also a powerful tool for preclinical neuroscience and neuro-oncology research. However, existing FUS systems are expensive and lack the flexibility of modulating BBB opening volume, which prevents a broader research community from adopting the FUS+MB technique in preclinical studies. To address the challenge, we developed a low cost (∼$100), mini FUS transducer with the capability to modulate BBB opening size that can be readily integrated with a standard stereotaxic frame for mouse. Specifically, we manufactured in-house mini FUS transducers with three frequencies (1.5, 3.0, and 6.0 MHz), and quantified BBB opening and targeting accuracy at varying pressures (0.20 to 0.81 MPa). The volume of FUS+MB-induced BBB opening was evaluated using both contrast-enhanced MRI and Evans blue extravasation. Our results showed that we can achieve varying amount of Evans blue delivery and BBB opening size by modulating the transducer frequency and acoustic pressure. Additionally, the amount of Evans blue delivery and BBB opening had a significant linear correlation with the cavitation index (defined by the ratio between acoustic pressure and frequency). We believe that this stereotaxic-guided FUS system will lower the barrier for adopting the FUS technique in a broader research community.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0007864
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2021
    detail.hit.zdb_id: 1461063-2
    detail.hit.zdb_id: 219231-7
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