Corsi Block-Tapping Task (Forward, Modified 4x4 Version)

This repository contains an Inquisit script for a modified Forward Corsi Block-Tapping Task, based on Millisecond Software’s implementation and adapted by Zoe Niesen (2024).

Unlike the adaptive version, this task uses a fixed 4x4 grid and a predetermined set of sequences (lengths 3–5). All sequences are always presented, regardless of participant performance.

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🧠 Task Overview

• Participants view a grid of 16 boxes (4x4 layout).
• Boxes light up in a predefined sequence, which participants must reproduce by clicking the boxes in the same order.
• Sequence lengths: 3, 4, and 5 boxes.
• All sequences are presented, even if participants make errors.
• Duration: ~1 minute.

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📊 Data Output

The script produces two data files per participant:

1. Raw data file (corsiblocktappingtask_raw*.iqdat)

   • Device and system info
   • Trial-level responses, latencies, accuracy
   • Sequence and response strings
   • Block span (longest correctly recalled sequence)
   • Total correct sequences recalled

2. Summary data file (corsiblocktappingtask_summary*.iqdat)

   • Participant/session identifiers
   • Task completion status
   • Block span and total score

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⚙️ Features

• Fixed 4x4 grid of blocks.
• Non-adaptive — all sequences are always shown.
• Optimized for touchscreens (adapts for mouse use as well).
• Editable parameters for:
  • Colors (blocks, taps, board, screen)
  • Canvas sizing (absolute vs. relative)
  • Timing (intervals, feedback)
  • Feedback & scoring options
  • Optional age question (with normative grouping from Kessels et al., 2000)

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✏️ Customization

The script can be customized by editing:

• Sequence patterns
• Color scheme
• Feedback settings
• Stimulus sizing

This version may also serve as a template for other fixed-sequence memory tasks.

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🔗 Original Script

This script is a modified version of the Forward Corsi Block-Tapping Task by Millisecond Software, LLC (2022).
Original version available here: Millisecond Software – Corsi Block-Tapping Task

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📚 References

• Kessels, R.P.C., van Zandvoort, M.J.E., Postma, A., Kappelle, L.J., & de Haan, E.H.F. (2000). The Corsi block-tapping task: Standardization and normative data. Applied Neuropsychology, 7(4), 252-258.
• Corsi, P. M. (1972). Human memory and the medial temporal region of the brain. Dissertation Abstracts International, 34, 819B.

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📜 Copyright & License

Copyright © 2022 Millisecond Software, LLC
Modified work Copyright © 2024 Zoe Niesen
Used with permission from Millisecond Software