Ryosuke O. Tachibana

橘 亮輔 Behav Neuroscientist @ AIST, Tsukuba. PhD. Studying audition & vocal communication. Occasional orchestra conductor. 日本語→@ro_tachi_jpn

[sioco @oka_sio]

論文出たよ!

Happy to share that our collaborative research with @ro_tachi_jpn has been published. We conducted playback experiments to investigate the meaning of 31-kHz calls emitted by affiliative rats under conditions of inequity or isolation.

https://t.co/pR4unSPosr

🔊🎶🐁

[Animal Prattle @animal_prattle]

Fitting a neural sequence model (a la ChatGPT) to sperm whale vocalizations, new from @pratyusha_PS @sgero w/Profs. Rus, Torralba and @jacobandreas from @MIT

Results on context dependency remind me (@nicholdav) a bit of ABCD-VAE from @ro_tachi et al https://t.co/L5Xc6jI8YN

[Jumpei Matsumoto @jumpeim_uot]

I am happy to share my Python translation of USVSEG, the wonderful Matlab script for segmentation of ultrasonic vocalizations in rodents by @ro_tachi and @canno696show et al!
https://t.co/cvrbmR19fy

[Ryosuke O. Tachibana @ro_tachi]

ping post to prevent my account from deletion

[Ryosuke O. Tachibana @ro_tachi]

After our long collaboration, we decided to introduce a frequency modulation measure "cvfreq" instead of call-type categorization. Please see Fig. S7 in supplementary material to check relationships between cvfreq and conventional call categories.
https://t.co/ZhiAyGM7iE

[Ryosuke O. Tachibana @ro_tachi]

Pls check our new paper on mice vocalizations! Lan-san did great experiments with Kanno-san @canno696show
https://t.co/LKsijSs1di

[Animal Prattle @animal_prattle]

Thesis from Dr. Candace Burke in @david_euston's group @uLethbridge:
"What are they good for? Ultrasonic vocalizations as social communication signals in rats"

Suggests in rats USVs are not just affective state.
1/2

https://t.co/qAfpXSMwbR

[Pat Savage (@PatrickESavage.bsky.social) @PatrickESavage]

Our peer-reviewed article describing the validation, reanalysis, and public release of the Global Jukebox with audio and coded "Cantometric" data for >5,000 songs from >1,000 societies is finally published #OpenAccess today in @PLOSONE! (1/4)
https://t.co/OOCK2MYO56

[Ryosuke O. Tachibana @ro_tachi]

We here assessed what spectral components of the fluctuation contribute to the compensation, and found a slower one (≤5Hz) is important. We believe this result supports the idea that vocal fluctuation is not just motor noise but could drive the exploration to find better states.

[Ryosuke O. Tachibana @ro_tachi]

Pleased to announce our publication in @SciReports on human vocal control!
https://t.co/wF0QB5DuWL

We found that spontaneous fluctuations in vocal pitch are positively correlated with compensative vocal responses during pitch-shifted auditory feedback.

[Ryosuke O. Tachibana @ro_tachi]

Similar variability-compensation relationships had been observed in Scheerer & Jones (2012)
https://t.co/XBnmuUDgoa
and also in songbird studies (!) using auditory feedback manipulations, e.g.
https://t.co/6ixYjMIiwL

[Hirofumi Nishizono, Kanazawa Medical University @NishizonoL]

I have noticed that many researchers do not know this method. The timing of mating in mice can be controlled with chemicals. RIKEN BRC’s paper: https://t.co/Ck8cQdFqxI

[KANNO Kouta @canno696show]

マウスの超音波発声の文献をテーマ構成して知見をまとめたscrapboxのサイトを作りました。
https://t.co/ti2HSTDMp4

自分のために作ったメモなんですが、見る人によっては解説になっており、実際、うちのラボメンにとっての解説になるように作りました。

[Ryosuke O. Tachibana @ro_tachi]

and karaoke definitely

[岡ノ谷一夫 @KazuoOkanoya]

After three days of attending #jcole2022, I have a feeling that upspeak (or high-rising terminal) is becoming more prominent among young speakers. This could be a theme of sociolinguistics?

[Pat Savage (@PatrickESavage.bsky.social) @PatrickESavage]

@Limor_Raviv @EvolangConf @JCoLE2022 @KazuoOkanoya @AndreaRavignani @ro_tachi @DariaValente @biolingjp

[Pat Savage (@PatrickESavage.bsky.social) @PatrickESavage]

Blown away by how great @EvolangConf / @JCoLE2022 is. My first but will certainly not be my last!
Plenaries by Ani Patel, @KazuoOkanoya & @Limor_Raviv were particularly inspiring, but best of all was social bonding through karaoke 😉!
Thanks all - see you next time!
#JCoLE

[Jumpei Matsumoto @jumpeim_uot]

@biorxiv_neursci @canno696show @katou768k @tom_shibata @ro_tachi Finally the paper is published in @iScience_CP!!
https://t.co/n5MkhmUeMY

[Tecumseh Fitch @TecumsehFitch]

2. Humans lack vocal membranes, meaning that we lost them in the last 6 million years of hominin evolution. We think this enables humans to have a more stable voice source, important for fine control of pitch in speech and song. Sometimes "less is more"! https://t.co/aA45m3AJHK

[Tecumseh Fitch @TecumsehFitch]

1. Our new paper in @ScienceMagazine found that all 43 species of nonhuman primate we examined possess "vocal membranes": small ribbon-like extensions of the vocal folds. These allow loud, high-pitched calls, but make chaotic nonlinearities more common. https://t.co/aA45m3AJHK