Adults with DD show a smaller subitizing range and impaired enumeration of random sets across visual and tactile modalities¶
Claim · All claims
Evidence · 1 study · reviewr2·q2
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person
Subclaims¶
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q2 i? Adults with DD have a smaller subitizing range (3 instead of 4 elements) than controls and are less accurate enumerating random visual and tactile sets, interpreted as modality-independent pattern recognition and working memory deficits. → Liane Kaufmann 2020
Evidence¶
Liane Kaufmann 2020¶
Liane Kaufmann, Michael von Aster, Silke M. Göbel, Josef Marksteiner, and Elise Klein. (2020). Developmental Dyscalculia in Adults: Current Issues and Open Questions for Future Research. Lernen und Lernstörungen, 9(2), 126–137. https://doi.org/10.1024/2235-0977/a000294
q2 · i? · review · r2
Review reports Gliksman and Henik (2019) enumeration study: adults with DD showed a "smaller subitizing range (i. e., 3 instead of 4 elements)" versus controls plus a larger alerting effect; alerting did not facilitate subitizing. Cohen et al. (2019) extended this, finding DD adults less accurate on random visual and tactile sets.
"According to Gliksman and Henik (2019), adults with DD have a smaller subitizing range (i. e., 3 instead of 4 elements) compared with controls and moreover, present a larger alerting effect"
Discussion¶
Related Claims¶
- Adults with DD show deficient alerting and executive attention with preserved orienting, indicating domain-general deficits beyond number processing — related
- Working memory includes partially independent subcomponents for auditory/verbal and visual/2- or 3-dimensional information — related
- Adults with DD show a reduced Number Stroop effect during physical comparison, suggesting weaker automatic activation of number magnitude — related
- Adults with dyscalculia show hyper-connectivity between primary visual cortex and inferior occipital cortex and fusiform gyrus — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dd-adults-subitizing-enumeration-deficits |
title |
Adults with DD show a smaller subitizing range and impaired enumeration of random sets across visual and tactile modalities |
description |
Adults with DD show a smaller subitizing range and impaired enumeration of random sets across visual and tactile modalities |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2020 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — liane-kaufmann-2020 |
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