Web-based auditory experiment

This is an experiment on auditory awareness. In order to participate in this experiment you need to listen to an audio file (step #1). After that you have to answer two questions about what you heard (step #2). You will then be given further information about the purpose of the experiment (debrief/step #3). It is important that you follow the experimental sequence below in order.

Step #1. Start the auditory experiment
Please listen to the following binaural recording – afterwards you will be asked several questions about what you heard – so listen carefully…

When you finished listening you can continue with step #2 below.

Step #2. Your responses

(1) Did you hear anything unusual that didn’t fit in with the scene?

(2) Did you hear anyone other than the four people preparing for the party?

Please prove you are human by selecting the Truck.

Step #3. Debrief

Listen to the debriefing – it will explain the background of this perceptual experiment.

This is the original article which was published by Dalto & Fraenkel (2012) in the journal ‘Cognition’.

Emprical results show that on average 50% of participants completely miss the “auditory gorilla”. Did you hear it? If not, listen again and you will be surprised how you could miss it in the first trial. This experiment tells us a lot about the inherent limits and the task-specificity of attentional resources. The phenomenon is called “inattentional blindness”. Our attention has been metaphorically compared to a spotlight which only illuminates a small proportion of the vastness of reality.

Dalton, P., & Fraenkel, N.. (2012). Gorillas we have missed: Sustained inattentional deafness for dynamic events. Cognition, 124(3), 367–372.

Plain numerical DOI: 10.1016/j.cognition.2012.05.012
directSciHub download

Simons, D. J., & Chabris, C. F.. (1999). Gorillas in Our Midst: Sustained Inattentional Blindness for Dynamic Events. Perception, 28(9), 1059–1074.

Plain numerical DOI: 10.1068/p281059
directSciHub download

Listen to the associated interview on RadioCognovia