Evidence map›Paper›PMID 42836093›Full record

ArticleNational science review2026

Posterior parietal cortex mediates rarity-induced decision bias.

Weihao Sheng, Xinrui Huang, Yang Xie, Manolis C Tsakiris, Yang Yang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in National science review, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Weihao ShengSchool of Life Science and Technology & State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China.ORCID https://orcid.org/0009-0005-1051-4157
Xinrui HuangSchool of Life Science and Technology & State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China.
Yang XieGlobal Institute of Future Technology, Shanghai Jiao Tong University, Shanghai 200240, China.
Manolis C TsakirisAcademy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China.
Yang YangSchool of Life Science and Technology & State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China.ORCID https://orcid.org/0000-0003-1200-268X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Optimal decision-making under uncertainty is critical for survival, yet real-world decisions often deviate from optimality. Here, we report a rarity-induced bias in humans and mice, where rare events exert a stronger and more persistent impact on subsequent decisions than common events. Optogenetic manipulations reveal distinct learning stage-specific roles of the posterior parietal cortex (PPC): in the naïve stage, PPC drives the rarity-induced bias and interferes with optimal decisions; in the expert stage, PPC becomes essential for stimulus-based decisions.

Indexed as

biasposterior parietal cortexprobabilistic decision-makingrarityuncertainty

Identifiers

PMID42836093
PMCPMC13637586

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.