Related Experiment Video

Updated: May 25, 2026

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

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

Published on: July 8, 2015

Recognition memory deficits in mild cognitive impairment

Salvador Algarabel1, Manuel Fuentes, Joaquín Escudero

  • 1University of Valencia, Valencia, Spain. salvador.algarabel@uv.es

Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
|January 18, 2012
PubMed

Insights

Mild cognitive impairment (MCI) patients show deficits in both recollection and familiarity, key components of recognition memory. This study clarifies memory impairments in MCI, impacting both retrieval processes.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Gerontology

Background:

  • Recognition memory deficits in mild cognitive impairment (MCI) lack consistent characterization.
  • While recollection deficits are typical in MCI, familiarity deficits remain debated.
  • Understanding these memory components is crucial for diagnosing and managing MCI.

Purpose of the Study:

  • To investigate the specific patterns of recollection and familiarity deficits in individuals with MCI.
  • To compare memory performance in MCI patients with age-matched controls and Alzheimer's disease (AD) patients.
  • To elucidate the impact of age and neurological status on recognition memory components.

Main Methods:

  • Utilized an associative recognition task to directly assess recollection.
  • Employed a perceptual similarity choice task as an index of familiarity.
  • Compared performance across two MCI groups (differing in age), an AD group, and two control groups (elderly and young healthy).

Main Results:

  • Recollection ability declines with increasing age and poorer neurological status.
  • Familiarity remained stable in elderly controls but was significantly impaired in MCI patients.
  • A single encoding situation revealed deficits in both recollection and familiarity mechanisms in MCI.

Conclusions:

  • Mild cognitive impairment is associated with deficits in both recollection and familiarity.
  • These findings provide evidence for impaired retrieval processes in recognition memory during the MCI stage.
  • The study clarifies the dual nature of memory impairment in MCI, affecting both recollection and familiarity.

More Related Videos

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment12:18

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment

Published on: January 11, 2020

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease06:23

The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease

Published on: October 13, 2016

Related Concept Videos

Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
Role of Hippocampus in Memory01:19

Role of Hippocampus in Memory

The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists01:30

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists

Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function. They...
Dementia01:30

Dementia

Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
Role of Neurotransmitters in Memory01:23

Role of Neurotransmitters in Memory

Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
 Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...