Transmission through muscle tissue shapes polarization signals during cuttlefish courtship

This dataset represents analyses of how birefringent arm muscles shape polarization-based courtship signals in male Doratosepion andreanum, pairing the revised manuscript and SI for context with all raw and  processed inputs needed to recreate the figures and extended data.
Optic measurement quantify AoLP/DoLP across arm regions and wavelengths, and map how transmitted light rotates relative to background illumination. Pixel-wise polarimetry maps capture the spatial mosaic of AoLP/DoLP in displaying arms, and birefringence model fits report individual optical parameters and contributions of different optical mechanism. The accompanying R workflow converts polarization images into AoLP/DoLP fields and interneuron activity estimates, enabling direct reuse or extension to new datasets.
In this study, we show that transparent muscle tissue in cuttlefish can actively shape visual signals for courtship by modulating light polarization—the orientation of light wave oscillation. Using phot..., , # Dryad dataset

Dataset DOI: 10.5061/dryad.41ns1rnsh

## Description of the data and file structure

This dataset contains the raw and processed data used to generate the main and extended figures in the manuscript titled \"Muscle transmission shapes conspicuous polarization signals in cuttlefish.\" All data are provided in standard formats (CSV, BMP, R script). Below is a description of each file and its correspondence to specific figures or analyses in the manuscript.

### Files and variables

### 1. Optic_measurement(Fig4dgh).csv

* Description: DoLP (Degree of Linear Polarization) and AoLP (°, Angle of Linear Polarization) estimations of transmitted light in different arm regions.
* loc: measured arm regions. Base, Middle, and Tip correspond to three positions located at 0.25, 0.5, and 0.75 along the arm, respectively, where 0 is defined as the base and 1 as the tip of the SDA.
* wavelength: light wavelength (nm)
* r2: coefficient of determination of estimated AoLP
* max: max value o...,