This contains the experimental materials for Experiment 1 and Experiment 2 of the paper:
'Gorilla in our Midst: An online behavioral experiment builder' Anwyl-Irvine, A., Massonnié, J., Flitton, A., Kirkham, N. and Evershed, J. (2019).
The two tasks are flanker tasks adapted from Rueda et al. (2004), the first is for children and involves fish as stimuli, the second is for adults and uses arrows
Built with Task Builder 1
The flanker task was adapted from Rueda et al. (2004). A horizontal row of five arrows were presented in the centre of the screen, and participants had to indicate the direction the middle fish was pointing (either to the left, or right), by pressing buttons on the keyboard. These buttons were selected so that participants could put one hand on each response key. The task has two trial types: congruent and incongruent. In congruent trials, the middle fish was pointing in the same direction as the flanking fish. In the incongruent trials, the middle fish was pointing in the opposite direction. Participants were asked to answer as quickly and accurately as possible.
Creative Commons Attribution (CC BY)
Rueda et al. (2004)
https://www.ncbi.nlm.nih.gov/pubmed/15093142
Built with Task Builder 1
The flanker task was adapted from Rueda et al. (2004). A horizontal row of five cartoon fish were presented in the centre of the screen (see Figure 2), and participants had to indicate the direction the middle fish was pointing (either to the left, or right), by pressing the “X” or “M” buttons on the keyboard. These buttons were selected so that children could put one hand on each response key. Buttons were covered by arrows stickers (left arrow for “X”; right arrow for “M”) to avoid memory load. The task has two trial types: congruent and incongruent. In congruent trials, the middle fish was pointing in the same direction as the flanking fish. In the incongruent trials, the middle fish was pointing in the opposite direction. Participants were asked to answer as quickly and accurately as possible.
Samples: This task has been used on more than 250 children, from 5 to 11 years of age.
Note: Don't forget to put the stickers on the keyboard or (in the case of unsupervised testing) to edit the task to display the answer keys ("X") and ("M") on the computer screen.
Gorilla Open Materials Attribution-NonCommerical Research-Only
Rueda et al., 2004 - Original paper from which the task was derived
https://doi.org/10.1016/j.neuropsychologia.2003.12.012
Massonnié et al., 2019 - Use of the adapted task on Gorilla
https://doi.org/10.3389/fpsyg.2019.00381
Fully open! Access by URL and searchable from the Open Materials search page
