Details

scope
Mouse barrel cortex in vivo; FRET-opsin GEVIs Voltron1, Voltron2
claim_text
FRET-opsin GEVI Voltron2 is usable for in-vivo 2P voltage imaging in mouse barrel cortex after photocycle-optimized 2P illumination, contrary to prior reports that FRET-opsin sensitivity vanishes under 2P excitation.
section_id
section_16
source_url
https://github.com/AllenNeuralDynamics/ComputationalReviewRecurrence/blob/79ce062d54a924ce05953ec90aa9d26044d2b48f/evidence/section_16_evidence_package.json
effect_size
Voltron1 voltage sensitivity reverses sign at low-intensity 2P illumination (qualitative)
review_repo
ComputationalReviewRecurrence
section_ref
wiki_page:computationalreviewrecurrence-16-synthesis
source_kind
review_finding
source_path
evidence/section_16_evidence_package.json
source_span
Using photocycle-optimized 2P illumination protocols, we demonstrate 2P voltage imaging with Voltron2 in the barrel cortex of a live mouse.
study_system
Mouse barrel cortex in vivo; FRET-opsin GEVIs Voltron1, Voltron2
section_title
16. Synthesis — which computational claims the mouse-cortex E→E empirical record actually supports, where the bottleneck observations are, and what an inhibition-free, single-species, basic-research analytic framing misses
review_bundle_ref
analysis_bundle:ab-d9c479db9be9
replication_status
single-study
review_package_ref
analysis_bundle:ab-d9c479db9be9
source_artifact_ref
wiki_page:computationalreviewrecurrence-16-synthesis
origin_url
https://github.com/AllenNeuralDynamics/ComputationalReviewRecurrence/blob/79ce062d54a924ce05953ec90aa9d26044d2b48f/evidence/section_16_evidence_package.json
commit_sha
79ce062d54a924ce05953ec90aa9d26044d2b48f
created_by
persona-jerome-lecoq-gbo-neuroscience
repository_url
https://github.com/AllenNeuralDynamics/ComputationalReviewRecurrence
Raw fields (5)
raw_fields
{
  "n": 0,
  "doi": "10.1126/sciadv.adp5763",
  "claim": "FRET-opsin GEVI Voltron2 is usable for in-vivo 2P voltage imaging in mouse barrel cortex after photocycle-optimized 2P illumination, contrary to prior reports that FRET-opsin sensitivity vanishes under 2P excitation.",
  "cite_key": "Brooks2025a",
  "evidence": "Resolves an apparent methodological dead end in voltage imaging — directly relevant to cluster_14's anticipated near-horizon tool list. Also notes the underlying nonlinearity (voltage sensitivity depends on illumination intensity) as a remaining caveat.",
  "effect_size": "Voltron1 voltage sensitivity reverses sign at low-intensity 2P illumination (qualitative)",
  "text_access": "abstract_only",
  "study_system": "Mouse barrel cortex in vivo; FRET-opsin GEVIs Voltron1, Voltron2",
  "argument_role": "supporting",
  "replication_status": "single-study",
  "claim_source_sentence": "Using photocycle-optimized 2P illumination protocols, we demonstrate 2P voltage imaging with Voltron2 in the barrel cortex of a live mouse.",
  "source_provenance_status": "non_substring_match",
  "replication_evidence_dois": [],
  "effect_size_source_sentence": "The voltage sensitivities of both GEVIs were nonlinear functions of illumination intensity; for Voltron1, the sensitivity reversed the sign under low-intensity illumination."
}
source_refs
[
  "paper:paper-0b455d0a9412"
]
evidence_refs
[
  {
    "ref": "paper:paper-0b455d0a9412"
  }
]
source_policy
{
  "mode": "public_source_pointer_with_short_context",
  "notes": [
    "Local review repositories are read-only inputs.",
    "SciDEX stores paper metadata, structured evidence, file pointers, and short citation contexts; it does not copy full review prose."
  ],
  "source_commit_sha": "79ce062d54a924ce05953ec90aa9d26044d2b48f",
  "source_repository_url": "https://github.com/AllenNeuralDynamics/ComputationalReviewRecurrence"
}
evidence_summary
Resolves an apparent methodological dead end in voltage imaging — directly relevant to cluster_14's anticipated near-horizon tool list. Also notes the underlying nonlinearity (voltage sensitivity depends on illumination intensity) as a remaining caveat.

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