Movie S2

Intermediate regular heartbeat (Fig. 1-III). Transverse T1w-MRI of slow regular heartbeat of Mytilus galloprovincialis with IR-PPG of a double upward peak. Averaged images of 4 beats from 249 sec are presented by 2.56 times speed. Heart rate is 9.4 bpm. Slice position is set at the AV valve.

A portable infrared photoplethysmograph: heartbeat of Mytilus galloprovincialis analyzed by MRI and application to Bathymodiolus septemdierum

Eriko Seo, Toshiyuki Sazi, Morio Togawa, Osamu Nagata, Masataka Murakami, Shigeaki Kojima, and Yoshiteru Seo

Biology Open 2016. 5:1752-1757; doi: 10.1242/bio.020909