Evidence map›Paper›PMID 32433580›Full record

ArticleScientific reports2020

Automated detection of the head-twitch response using wavelet scalograms and a deep convolutional neural network.

Adam L Halberstadt

Open access · goldAbstract readValidation Study
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 7% of its field
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

21 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Discovery of Highly Selective 5-HTJournal of medicinal chemistry · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Assessing the effects of 5-HTPharmacological reports : PR · 2025
    Article
  9. Article
  10. Identification of 5-HTNature communications · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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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

1 author at 1 institution in 1 country.

Adam L HalberstadtDepartment of Psychiatry, University of California San Diego, La Jolla, CA, USA. ahalberstadt@ucsd.edu.
University of California, San Diego · US

Funding

The Next Generation of Hallucinogens: A New Class of Synthetic Psychoactive DrugsR01DA041336 · NIDA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI HALBERSTADT, ADAM L. · 2017 to 2020
$1.4M
NIDA NIH HHS R01 DA041336
6 · The paper itself

Abstract

Hallucinogens induce the head-twitch response (HTR), a rapid reciprocal head movement, in mice. Although head twitches are usually identified by direct observation, they can also be assessed using a head-mounted magnet and a magnetometer. Procedures have been developed to automate the analysis of magnetometer recordings by detecting events that match the frequency, duration, and amplitude of the HTR. However, there is considerable variability in the features of head twitches, and behaviors such as jumping have similar characteristics, reducing the reliability of these methods. We have developed an automated method that can detect head twitches unambiguously, without relying on features in the amplitude-time domain. To detect the behavior, events are transformed into a visual representation in the time-frequency domain (a scalogram), deep features are extracted using the pretrained convolutional neural network (CNN) ResNet-50, and then the images are classified using a Support Vector Machine (SVM) algorithm. These procedures were used to analyze recordings from 237 mice containing 11,312 HTR. After transformation to scalograms, the multistage CNN-SVM approach detected 11,244 (99.4%) of the HTR. The procedures were insensitive to other behaviors, including jumping and seizures. Deep learning based on scalograms can be used to automate HTR detection with robust sensitivity and reliability.

Indexed as

Support Vector MachineAnimalsBehavior, AnimalBehavior Observation TechniquesDrug Evaluation, PreclinicalHallucinogensHead MovementsMagnetometryMagnetsMaleMiceModels, AnimalReproducibility of ResultsSensitivity and SpecificityHallucinogens

Identifiers

PMID32433580
PMCPMC7239849
OpenAlexW3027810862

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.