Corsi Block-Tapping

Platform: Unity · French, Italian · verified today

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Description

As part of the CRAB (Computerized Reading-related Assessment Battery), the Corsi task assesses visuospatial working memory span. Participants are required to reproduce sequences of spatial locations in both forward and backward order, the latter additionally engaging executive control processes. This computerized task targets visuospatial short-term memory, for which associations with reading-related cognitive skills have been reported in the developmental literature. Authored in Unity for the lab; the catalog preview is a recorded video walkthrough, and the full task is available as a downloadable Unity build.

Contact & Lab

Lab

Brain and Learning Lab

unige.ch

Principal investigator

Daphné Bavelier

University of Geneva

Task contact

Angela.Pasqualotto@unige.ch

Contributors

Angela Pasqualotto

University of Geneva

Conceptualization

Hugo Farajallah

University of Geneva

Software

Zeno Menestrina

University of Geneva

Software

Citation

No citation available — contact the task author.

Credits

Developed at the Brain and Learning Lab (University of Geneva) under Angela Pasqualotto (task conception) and Zeno Menestrina (software developer) as part of the CRAB (Computerized Reading-related Assessment Battery) project. Software updated by Hugo Farajallah and Zeno Menestrina (2025). Adapted from Unity to HTML/JS by Hugo Farajallah in 2026.

Domains

Spatial Processing & Memory

Working Memory

Part of suite:

CRAB

Target Population

Age Categories

primary

Clinical Status

non-clinical

Additional Notes

Children learning to read

Languages

French

Italian

Run under

Engine

Unity

Operating system

Windows · Mac · Android

Format

Online + in-lab

Modalities

behavioral

Task Outputs

What it measures

Visuospatial working memory capacity (forward and backward spatial span)

Output formats

custom

Unity WebGL internal data collection

Experimental design

Trial-based

Conditions

direction

forward

backward

— Recall direction

Key measures for analysis

Maximum span length (forward)
Maximum span length (backward)
Total score (sum of correct sequences)

Recorded variables

Variable	Role	Type	Description	Unit
`trial_id`	metadata	number	Unique trial identifier	-
`sequence_length`	independent	number	Number of spatial locations in the sequence	-
`direction`	independent	string	Recall direction (forward or backward) Values: forward, backward	-
`response_sequence`	dependent	array	Sequence of locations selected by participant	-
`accuracy`	dependent	boolean	Whether the sequence was correctly reproduced	-
`span_length`	dependent	number	Maximum span length achieved	-

Provenance

Source: nccr-seed

Fetched: 2025-11-17

Last verified: 2026-07-17 — passed

Other tasks in this suite

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Barrage

Multiple Object Tracking

Rhyme Recognition

Vocabulary

Visual Orthography

Decoding

Phoneme Deletion

Text Reading

Quick Actions

Preview

View Source Code

Download Task

Web build

Suggest Edit

Additional Information

Created Date

2025-11-17

Last Modified

2026-07-17