Jove
Visualize
Contact Us

Related Concept Videos

Synesthesia01:27

Synesthesia

347
Synesthesia is a remarkable condition where stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People with synesthesia experience a blending or crossing of their senses, such as sight and sound, leading to cross-modal sensations. In this condition, the stimulation of one sense, such as hearing a number or musical note, triggers an experience of another sense, like sensing a specific color, taste, or smell. People...
347
Autism Spectrum Disorder01:19

Autism Spectrum Disorder

752
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
752
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

296
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
296
Hallucinogens and Psychedelics01:27

Hallucinogens and Psychedelics

447
Hallucinogens are psychoactive substances that profoundly alter perceptual experiences, generating unreal visual and sensory images. Often referred to as psychedelic drugs — a term derived from the Greek words "psyche" (mind) and "delos" (revealing) — these substances include marijuana and lysergic acid diethylamide (LSD), among others. These drugs vary in intensity and effects.
Marijuana, derived from the dried leaves and flowers of the hemp plant, contains...
447
Positive Symptoms of Schizophrenia: Hallucinations and Delusions01:30

Positive Symptoms of Schizophrenia: Hallucinations and Delusions

368
Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
368
CNS Stimulants: Psychedelic Agents01:22

CNS Stimulants: Psychedelic Agents

494
Hallucinogens, also known as psychedelic drugs, are a class of substances known for their ability to alter perception, cognition, and emotions. Despite their profound effects on the mind, these drugs are non-addictive, setting them apart from many other abused substances. The mechanism of action of these drugs lies in their impact on the 5-HT2A receptor in the brain. Upon activation, this receptor couples to Gq-type G proteins, triggering a cascade that releases intracellular calcium. This...
494

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Some questions about the attention schema theory.

Cognitive neuropsychology·2020
Same author

Aspects of the unity of consciousness and everyday memory failures.

Consciousness and cognition·2005
Same author

Inferring the mental processes of other minds.

The Journal of social psychology·2003
See all related articles
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Dec 6, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

16.9K

Synesthesia, hallucination, and autism.

Rocco J Gennaro1

  • 1University of Southern Indiana, Philosophy Program, College of Liberal Arts, LA 3055, 8600 University Blvd., Evansville IN 47712, rjgennaro@usi.edu.

Frontiers in Bioscience (Landmark Edition)
|October 13, 2020
PubMed
Summary

Synesthesia, a union of senses, involves involuntary sensory connections. This study explores if synesthetic experiences are veridical perceptions, potentially linked to secondary properties and autism.

Area of Science:

  • Neuroscience
  • Psychology
  • Philosophy of Mind

Background:

  • Synesthesia is a neurological phenomenon where senses merge, e.g., hearing colors.
  • Existing views debate whether synesthetic experiences are illusions or genuine perceptions.

Purpose of the Study:

  • Critically evaluate Sollberger's view on synesthesia as veridical perception.
  • Propose a novel framework for understanding synesthesia through "second-order secondary properties."
  • Investigate the unidirectionality of synesthesia and its links to psychopathology, such as autism.

Main Methods:

  • Philosophical analysis of synesthetic experiences.
  • Conceptual exploration of secondary properties and their role in perception.
  • Literature review on synesthesia, perception, and autism.

More Related Videos

Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

23.2K
Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
05:32

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos

Published on: December 7, 2018

9.4K

Related Experiment Videos

Last Updated: Dec 6, 2025

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder

Published on: April 22, 2015

16.9K
Training Synesthetic Letter-color Associations by Reading in Color
10:27

Training Synesthetic Letter-color Associations by Reading in Color

Published on: February 20, 2014

23.2K
Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
05:32

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos

Published on: December 7, 2018

9.4K

Main Results:

  • Argues for the possibility of synesthetic experiences being veridical perceptions.
  • Introduces the concept of "second-order secondary properties" to explain synesthesia.
  • Suggests this framework may explain synesthesia's unidirectionality and relation to autism.

Conclusions:

  • Synesthetic experiences may represent genuine perceptions of "second-order secondary properties."
  • This perspective offers insights into the nature of synesthesia and its neurological underpinnings.
  • Further research is needed to explore the implications for understanding sensory processing and related conditions.