Functional White-Laser Imaging to Study Brain Oxygen Uncoupling/Recoupling in Songbirds

Mottin, Stéphane; Montcel, Bruno; Chatelus, H.; Ramstein, Stéphane; Vignal, Catherine; Mathevon, Nicolas

doi:10.1038/jcbfm.2010.206

Cited by 11 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Image resolution using fMRI may also be improved by timing acquisition to specific phases of the response (Zhao et al 2007a; Chen-Bee et al 2007; Zhao et al 2007b). Our results corroborate several previously reported results in zebra finch (Mottin et al 2011), but with some key differences.…”

Section: Discussionsupporting

confidence: 93%

“…Our results share important similarities to the results reported by Mottin et al (Mottin et al 2011). Specifically, both our findings and theirs for HbR demonstrate highly similar phase I (BOLD) and III (undershoot) behavior.…”

Section: Discussionsupporting

confidence: 93%

“…4, phase II). An equivalent phase II component of the hemodynamic response has not been specifically reported in fMRI or optical imaging studies using isoflurane on the zebra finch (Boumans et al 2007; Poirier et al 2009; Mottin et al 2011) nor in studies involving anesthetized rats or cats (Berwick et al 2002; Zhao et al 2007a; Zhao et al 2007b). While it logically follows that [HbO] and [HbR] would change in opposite directions, it is interesting to note that [HbT] is decreasing.…”

Section: Discussionmentioning

confidence: 99%

“…3) while Mottin et al used extinction coefficient values from mammals (Mottin et al 2011). Although the difference between zebra finch and mammalian values is subtle, the zebra finch isosbestic point is found at a longer wavelength than it is in mammals.…”

Section: Discussionmentioning

confidence: 99%

“…Responses to songs and calls have been demonstrated recently using a method termed Picosecond Optical Tomography, which affords picosecond and submillimeter resolution along a strip of tissue (Mottin et al 2011). Further improvements in methods are still needed, however, to advance NIRS as a standard technique for recording neurophysiological activities, potentially even in awake behaving birds.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Noninvasive diffusive optical imaging of the auditory response to birdsong in the zebra finch

et al. 2013

View full text Add to dashboard Cite

Songbirds communicate by learned vocalizations with concomitant changes in neurophysiological and genomic activities in discrete parts of the brain. Here we tested a novel implementation of diffusive optical imaging (also known as diffuse optical imaging, DOI) for monitoring brain physiology associated with vocal signal perception. DOI noninvasively measures brain activity using red and near-infrared light delivered through optic fibers (optodes) resting on the scalp. DOI does not harm subjects, so it raises the possibility of repeatedly measuring brain activity and the effects of accumulated experience in the same subject over an entire life span, all while leaving tissue intact for further study. We developed a custom-made apparatus for interfacing optodes to the zebra finch (Taeniopygia guttata) head using 3D modeling software and rapid prototyping technology, and applied it to record responses to presentations of birdsong in isoflurane-anesthetized zebra finches. We discovered a subtle but significant difference between the hemoglobin spectra of zebra finches and mammals which has a major impact in how hemodynamic responses are interpreted in the zebra finch. Our measured responses to birdsong playback were robust, highly repeatable, and readily observed in single trials. Responses were complex in shape and closely paralleled responses described in mammals. They were localized to the caudal medial portion of the brain, consistent with response localization from prior gene expression, electrophysiological, and functional magnetic resonance imaging studies. These results define an approach for collecting neurophysiological data from songbirds that should be applicable to diverse species and adaptable for studies in awake behaving animals.

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Noninvasive diffusive optical imaging of the auditory response to birdsong in the zebra finch

et al. 2013

View full text Add to dashboard Cite

show abstract

A near-infrared spectroscopy (NIRS) device unveils oxygenation levels in skeletal muscle and brain of a conscious Harris’s Hawk (Parabuteo unicinctus)

Doi¹,

Hiwatashi

Yokosuka

et al. 2020

J Ornithol

View full text Add to dashboard Cite

We measured the regional saturation of oxygen of hemoglobin (rSO2) and the total hemoglobin index (HbI) in the brain and skeletal muscles of a conscious Harris’s Hawk by a near-infrared spectroscopy device (NIRS). The oxygenation levels of the breast were significantly lower than the cerebral parts. A flight exercise significantly increased the rSO2 and HbI of the breast. The breast surface temperature significantly increased in response to flight training by a thermography. NIRS enabled us to measure changes in the oxygenation levels of brain and skeletal muscles in a conscious Harris’s Hawk before and after a moving task.

show abstract

Real Time Intraoperative Functional Brain Mapping Based on RGB Imaging

Caredda

Mahieu-Williame

Sablong

et al. 2021

IRBM

View full text Add to dashboard Cite

Functional White-Laser Imaging to Study Brain Oxygen Uncoupling/Recoupling in Songbirds

Abstract: The grants should have included the following note: 'These experiments were supported by the Program 'Emergence' of the Région Rhône-Alpes and the Agence Nationale de la Recherche (Project 'Birds' voices, ANR-06-BLAN-0293-01)'.

Cited by 11 publications

References 0 publications

Noninvasive diffusive optical imaging of the auditory response to birdsong in the zebra finch

Noninvasive diffusive optical imaging of the auditory response to birdsong in the zebra finch

A near-infrared spectroscopy (NIRS) device unveils oxygenation levels in skeletal muscle and brain of a conscious Harris’s Hawk (Parabuteo unicinctus)

Real Time Intraoperative Functional Brain Mapping Based on RGB Imaging

Contact Info

Product

Resources

About