Zep
The Zep programming language.

Head-Turn Preference Procedure
Purpose of this ZEP-based experiment is to see whether an infant participant can detect a difference between two types of auditory stimuli. The infant sits on the caregiver lap facing a wall on which a green light, an invisible speaker and a camera is mounted. On each side wall a red light (or other visual…
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Match Picture to Picture
Purpose of this ZEP experiment is to measure a participant’s ability to link one picture to another. For each trial three images are presented simultaneously. Participant’s task is to select which of the two images best match the third image. Experiment is self-paced, has visual appealing features, and some instruction.
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Adding, deleting or replacing stimuli in ZEP
When using ZEP, you often have to add your own stimuli. When you download an experiment from the website, example stimuli are given, but you probably want to test with your own set of stimuli. When an experiment is tailored to your needs, or created for you from scratch, the programmers will often leave adding…
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Flanker Task
The target is flanked by non-target stimuli which correspond either to the same directional response as the target (congruent flankers), to the opposite response (incongruent flankers), or to neither (neutral flankers). The test can be used to assess the ability to suppress responses that are inappropriate in a particular context. Randomisation is according to these rules:…
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Advanced Digit Span
Memory span test to measure the longest list of digits that a participant can recall after presentation. The participant is visually or audibly presented a sequence of digits. The participant’s task is to type in the digits he/she saw in presented order or reversed order. Trials repeat in sets until a mistake is made or…
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