Information regarding stimuli used for music stream segregation tasks

Thank you for your interest in our music stream segregation task. All stimuli and tasks referred to in this text are discussed in the following publication:

Niels R. Disbergen, Giancarlo Valente, Elia Formisano, and Robert J. Zatorre (2018). Assessing Top-down and Bottom-Up Contributions to Auditory Stream Segregation and Integration with Polyphonic Music. Frontiers in Neuroscience, 12:121. doi:10.3389/fnins.2018.00121

Please note that at this moment we only made the experimental stimuli of experiment 1 and experiment 2 available. In the near future, we will add the training stimuli to the download section as well as make experiment presentation codes, written in Presentation (Neurobehavioral Systems Inc., Albany, California, USA), for both training and experiments accessible via Niels Disbergen's GitHub. In case you are interested in making use of our task(s) in the meantime, please contact Niels Disbergen.

General Information

All music used in the experiments has been composed by Scott Rubin.

Stimuli (as wav-files) can be obtained in the download section of this webpage. Files are divided per experiment (see below) and in each composition's folder for experiment 1 there is a *.pdf with their respective scores. At the end of this page an overview of the stimulus directory tree can be found.

Experiment 1: Attentive Modulation

Files are named in the following manner: "Comp[number]_[triplet location]_[voice].wav"

Composition numbers [number] and their triplet timing:

Composition Triplet Time (s)
1* 15
2 13
3 15
4* 19
5* 16
6 14
7 15
8* 16
9 15
10* 17
* = used in experiment 2

Each composition was written in four different triplet versions [triplet location], see Figure 1 of publication:

Synthesized music [voice]:

Experiment 2: Attentive and Instrument Timbre Modulation

Stimuli for which the timbre was morphed, and were included in experiment 1 are: 1, 4, 5, 8, and 10.

Filenames are an extension to those of experiment 1: Comp[number]_[triplet location]_[voice]_[morph-direction]_[morph-step].wav

Morphing direction of voice [morph-direction]:

Morphing percentage [morph-step]:

Stimulus download directory tree

Stimuli are organized in the following directories: