Related Experiment Video
Updated: Jul 11, 2026
10:37
Transcranial Direct Current Stimulation (tDCS) for Memory Enhancement
Published on: September 18, 2021
[Prefrontal cortex: implications for memory functions and dementia]
Nurper Erberk Ozen1, Murat Rezaki
1Hacettepe U Tip Fak., Psikiyatri AD., Ankara. nerberk@superonline.com
Turk Psikiyatri Dergisi = Turkish Journal of Psychiatry
|September 15, 2007
Summary
The prefrontal cortex (PFC) plays a crucial role in memory retrieval and is implicated in normal aging and various dementias. Understanding PFC function is key to addressing memory disorders.
Area of Science:
- Neuroscience
- Cognitive Science
Context:
- The prefrontal cortex (PFC) is a complex brain region
- PFC is implicated in motor behaviors and increasingly in memory functions
- Its role in memory, aging, and dementia requires further elucidation
Purpose:
- To review and summarize recent literature on prefrontal cortex (PFC) neuroanatomy
- To explore the PFC's involvement in memory, normal aging, and dementias
Summary:
- Despite extensive cognitive functions, severe frontal lobe damage may cause only minor cognitive deficits, potentially masked by behavioral symptoms
- The PFC is critical for memory retrieval and shows involvement in frontal lobe dementias, Alzheimer disease, mild cognitive impairment, and normal aging
- Psychiatric and behavioral symptoms in these conditions may stem from PFC dysfunction
Impact:
- Memory disorders are frequently linked to frontal lobe and PFC dysfunction
- Specific PFC regions may correlate with distinct memory types and dysfunctions
- Advanced neuroimaging and animal models are needed to fully understand PFC's role in memory physiology and pathology.
More Related Videos
Related Concept Videos
01:14Role of Cerebellum and Prefrontal Cortex in Memory
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...
01:22Dementia 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...
01:26Higher 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...
01:30Dementia
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.
The progression of dementia is generally gradual.
01:29Alzheimer Disease l: Introduction
Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
01:26Alzheimer'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...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...