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In this task participants are required to observe letter triagrams presented on the screen and then serially recall those letters by typing out their response. Distraction task of counting backwards in threes from a random number is used before recall. This experiment is based on Brown (1958) and Peterson & Peterson (1959) experiments.

An example of a visual search task. Participants must search for the letter T amongst distractor letters.

This is a demo of the experimental procedure reported in the scientific paper entitled "Assessing time-based prospective memory online: A comparison study between laboratory-based and Web-based testing", published in the Quarterly Journal of Experimental Psychology.

A demo of a basic flanker task. Participants must press the left and right arrow keys to identify the direction of the central arrow.

The goal of this experiment is to investigate the efficiency of executive control and conflict resolution across different stimulus domains and spatial configurations.

Does the "Flanker Effect" (reaction time delay during incongruent trials) differ when processing symbolic stimuli (arrows) versus categorical mappings (letters)?

To what extent does spatial distance between target and distractors mitigate the interference effect?

Participants must press the left and right arrow keys to identify the direction of the central arrow. Further instructions will be introduced before each block of the task.