# Selective contralesional constructional hemi‐apraxia after unilateral brain damage: Which relationship with unilateral spatial neglect?

**Authors:** Francesco Panico, Angela Arini, Claudio Crisci, Luigi Trojano

PMC · DOI: 10.1111/jnp.70006 · 2025-07-14

## TL;DR

This paper describes a specific drawing disorder after brain damage that occurs without typical neglect symptoms.

## Contribution

The study introduces selective contralesional constructional hemi-apraxia as a distinct clinical phenomenon.

## Key findings

- Three patients with focal brain lesions showed a contralesional drawing disorder.
- The disorder occurred without signs of unilateral neglect in standard tests.
- The condition was observed in complex constructional tasks regardless of lesion hemisphere.

## Abstract

We describe a peculiar contralesional drawing disorder in three patients affected by focal brain lesions, who did not show signs of unilateral neglect at standard clinical assessment, including the star cancellation test. This picture, that could be termed selective constructional hemi‐apraxia (CHA), could follow both right and left‐hemisphere lesions and is observed in complex constructional tasks. Future studies are warranted to explore the clinical and functional implications of CHA and its boundaries with unilateral neglect and constructional apraxia.

## Full-text entities

- **Diseases:** episodic memory (MESH:C580065), hemisphere lesions (MESH:D006832), upper limb apraxia (MESH:D038062), recall difficulties (MESH:D051346), CA (MESH:D000381), drawing disorders (MESH:D009358), deficits (MESH:D009461), CHA (MESH:C565524), USN (MESH:D058069), brain haemorrhage (MESH:D020300), apraxia (MESH:D001072), vascular brain lesions (MESH:D002561), right and left-hemisphere lesions (MESH:D002544), brain damage (MESH:D001925), haemorrhagic stroke (MESH:D002543), brain lesion (MESH:D001927), attention and episodic memory impairments (MESH:D008569), impairments in executive functions (MESH:D003072), hemiplegia (MESH:D006429), executive dysfunctions (MESH:D006331), arteriovenous malformation (MESH:D001165)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12976822/full.md

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Source: https://tomesphere.com/paper/PMC12976822