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In this task participants are required to press either left or right arrow key depending on which way the fish in centre is facing. Participants are required to ignore the direction of the surrounding fish. This is a children version of Flanker Task based on M. Rosario Rueda et al. (2004).

Created for Eliza Yujun Ng December 2018

Numbers are presented at a rate of one per second. The first digit cannot be 0 Following digits can be 0 but cannot be the same as the previous digit.

If the answer is correct the span is increased for the next trial If the answer is wrong the span is decreased for the next trial

If there are at least two errors at a given span and that represents more than half of the total attempts at that span then the experiment ends, returning a span of one less than the final span attempted.

The Visual Preference for Facial Expressions task uses eye tracking to measure how long people look at different emotional expressions (like happy or sad faces) to understand attentional biases.

An embedded html demographics form (online only) using iFrame code shared by @arnon_weinberg. The responses are saved to the data file as expInfo variables, which means that they will appear on every line of the data if the form is placed first.

This is an illustration of how to run a labjs experiment from pavlovia.org.

In this task participants are required to memorise and recall number series in order. Participants start out with three 3-digit sequences. If participants correctly recall 2 out of 3 three sequences, they progress to 4-digit sequence trials and so on. If participants respond incorrectly on 2/3 trials the experiment terminantes. This experiment is based on the original digit span experiment by Jacobs (1887).

Alternate between finding targets in two sequences.

In this task participants are required to press either left or right arrow key depending on which way the fish in centre is facing. Participants are required to ignore the direction of the surrounding fish. This is a children version of Flanker Task based on M. Rosario Rueda et al. (2004).

In this experiment participants are required to respond whenever the stimulus (square) location matches its location the previous trial (N-back-1). N-back-2 trials involve responding whenever the location of the square is the same as its location 2 trials before. This task is based on Kirchner (1958) experiment.

In this task participants are required to sort the presented cards based on a rule. The rule is unknown to the participants, however they receive feedback whether their answer was correct. The rule changes after certain amount of trials. This experiment is based on Grant & Berg (1948) experiment.

Sternberg Working Memory Task demo.

Recognition memory task - encoding and retrieval tasks with 10 min delay period between tasks

This experiment is designed to measure participants' forwards, backwards, and sequential digit spans. It uses visual presentation. Sequence length increases every two trials. If participants make an error on both trials of the same length, they move onto the next trial.

Classic Shepard & Metzler mental rotation task. 20 items. Two practice items. Feedback after each response.