Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

False Memories

False Memories

False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information with...

Amnesia

Amnesia

Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...

Higher Mental Functions of Brain: Learning and Memory

Higher Mental Functions of Brain: Learning and Memory

Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...

Dissociative Amnesia

Dissociative Amnesia

Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...

Repressed Memory

Repressed Memory

Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...

Prosopagnosia

Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...

You might also read

Related Articles

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

Sort by

Same author

An Overview of Oropouche Virus Disease.

The Neurohospitalist·2026

Same author

Outcomes of Integrated Practice Unit Treatment for Mild Traumatic Brain Injury and Co-occurring Conditions Among Veterans.

The Journal of neuropsychiatry and clinical neurosciences·2026

Same author

Rational design and in vivo validation of capsid inhibitors for enterovirus D68.

Nature communications·2026

Same author

A Single-Item Screening Tool for the Assessment of Hoarding: Preliminary Observations.

The Journal of neuropsychiatry and clinical neurosciences·2026

Same author

Ocular Motor Control and Cognitive Function in Military Veterans With Chronic Mild Traumatic Brain Injury.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026

Same author

Annual Report from the Editor-in-Chief (2025).

Annals of neurology·2025

Search research articles

Related Experiment Video

Updated: Jul 11, 2026

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

Reduplicative paramnesia in Morvan's syndrome.

Lynsee A Hudson¹, Yvonne D Rollins, C Alan Anderson

¹Department of Neurology, University of Colorado School of Medicine, Denver, Colorado, USA.

Journal of the Neurological Sciences

|October 12, 2007

Summary

This summary is machine-generated.

Reduplicative paramnesia (RP) can occur in Morvan's syndrome associated with voltage-gated potassium channel antibodies (VGKC abs). Immunotherapy, including IV immunoglobulin and corticosteroids, may improve RP and nervous system hyperexcitability.

More Related Videos

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

Published on: January 31, 2017

Using a Classroom-Based Deese Roediger McDermott Paradigm to Assess the Effects of Imagery on False Memories

Using a Classroom-Based Deese Roediger McDermott Paradigm to Assess the Effects of Imagery on False Memories

Published on: November 14, 2018

Related Experiment Videos

Last Updated: Jul 11, 2026

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory

Published on: January 31, 2017

Using a Classroom-Based Deese Roediger McDermott Paradigm to Assess the Effects of Imagery on False Memories

Using a Classroom-Based Deese Roediger McDermott Paradigm to Assess the Effects of Imagery on False Memories

Published on: November 14, 2018

Area of Science:

Neurology
Immunology

Background:

Morvan's syndrome involves peripheral nervous system hyperexcitability, including myokymia and neuromyotonia, often associated with VGKC abs.
Symptoms include hyperhydrosis, sleep disturbances, paresthesias, and encephalopathy.
Reduplicative paramnesia (RP) has not been previously reported in this condition.

Observation:

A 64-year-old male presented with a history of myokymia and myoclonus.
He experienced worsening parasomnia and confusion, developing a delusion of a duplicate home.
This presentation marked the first reported case of RP in Morvan's syndrome.

Findings:

Elevated serum VGKC antibody titers were detected.
Neuropsychological tests revealed executive function and memory deficits.
Electromyography confirmed diffuse myokymia. Treatment with IV immunoglobulin and prednisone improved RP and myoclonus, but not myokymia.

Implications:

RP is a potential neuropsychiatric manifestation of VGKC ab-associated Morvan's syndrome.
Both RP and nervous system hyperexcitability may respond to immunotherapy.
This case expands the understanding of Morvan's syndrome's clinical spectrum and treatment responses.