Pith Number

pith:4OHPB3AH

pith:2026:4OHPB3AH7DSNEXTKUBQUXXAJ6Y

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Emotional Expression in Low-Degrees-of-Freedom Robots: Assessing Perception with Reachy Mini

Amit Rogel, Elmira Yadollahi, Guy Laban

Constrained movements on low-DoF robots like Reachy Mini can convey affective meaning along valence and arousal, shaping social perceptions more than exact emotion labels.

arxiv:2605.12786 v1 · 2026-05-12 · cs.RO · cs.HC

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4 Citations open

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Claims

C1strongest claim

These findings suggest that even constrained robotic expressions can communicate affective meaning and influence social impressions, positioning Reachy Mini as a useful benchmark for studying affective communication in low-DoF robots.

C2weakest assumption

That the short video clips accurately and unambiguously represent the intended emotional expressions, and that participants' self-reports reliably capture perception without influence from prior expectations or video quality.

C3one line summary

Constrained movements on low-DoF robots like Reachy Mini can convey affective meaning along valence and arousal, shaping social perceptions more than exact emotion labels.

References

40 extracted · 40 resolved · 0 Pith anchors

[1] Survey of emotions in human–robot interactions: Perspectives from robotic psychology on 20 years of research, 2022

[2] Human brain spots emotion in non humanoid robots, 2011

[3] Robot-specific social cues in emotional body language, 2012

[4] Human perception of the emotional expressions of humanoid robot body movements: Evidence from survey and eye-tracking measurements, 2024

[5] Past, Present, and Future: A Survey of The Evolution of Affective Robotics For Well-being, 2025

Receipt and verification

First computed	2026-05-18T03:09:13.021495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e38ef0ec07f8e4d25e6aa0614bdc09f623500602b8f0f9ab7d67481575d48c12

Aliases

arxiv: 2605.12786 · arxiv_version: 2605.12786v1 · doi: 10.48550/arxiv.2605.12786 · pith_short_12: 4OHPB3AH7DSN · pith_short_16: 4OHPB3AH7DSNEXTK · pith_short_8: 4OHPB3AH

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4OHPB3AH7DSNEXTKUBQUXXAJ6Y \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e38ef0ec07f8e4d25e6aa0614bdc09f623500602b8f0f9ab7d67481575d48c12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0e5ba286c138be3fdd54338fcf7fd5de9f7e70a79933381812a7bf09abd2920",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2026-05-12T22:01:41Z",
    "title_canon_sha256": "ae2753c217d181b4fb3d449e349264ff1ef6f20176ce959552dd67e905f67bce"
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  "source": {
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    "kind": "arxiv",
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}