Related Experiment Video
Updated: Jul 4, 2025
09:49
Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
Published on: January 20, 2023
3.2K
Methylphenidate Ameliorates Behavioural and Neurobiological Deficits in Executive Function for Patients with Chronic
Alexander R D Peattie1,2, Anne E Manktelow1,2, Barbara J Sahakian3
1Division of Anaesthesia, University of Cambridge, Addenbrooke's Hospital, Box 93, Hills Road, Cambridge CB2 0QQ, UK.
Journal of Clinical Medicine
|February 10, 2024
Summary
Methylphenidate (MPh) improved cognitive function in traumatic brain injury (TBI) patients, enhancing visuospatial planning and executive function. This study investigated MPh's neurobiological effects on TBI recovery.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Clinical Neurology
Background:
- Traumatic brain injury (TBI) frequently causes cognitive deficits, particularly in visuospatial planning and executive functions.
- Methylphenidate (MPh) shows promise in ameliorating cognitive impairments in TBI patients.
- The Tower of London (TOL) task assesses executive function and visuospatial planning abilities.
Purpose of the Study:
- To investigate the neurobiological underpinnings of visuospatial planning and executive function in TBI patients.
- To examine the effects of Methylphenidate (MPh) on cognitive performance and brain activity in individuals with TBI.
- To compare brain activity and connectivity in TBI patients with and without MPh treatment against healthy controls.
Main Methods:
- A randomized, double-blinded, placebo-controlled fMRI study involving individuals with a history of TBI.
- Participants completed the Tower of London (TOL) task under conditions with and without MPh.
- Neuroimaging data (fMRI) were analyzed to assess brain activity and functional connectivity during task performance.
Main Results:
- TBI patients on placebo exhibited significant deficits in reaction time and accuracy compared to healthy controls, especially on high cognitive load tasks.
- MPh treatment improved accuracy in TBI patients to levels comparable to healthy controls across various cognitive loads.
- MPh normalized reduced activity in the inferior frontal gyri and insulae observed in TBI patients and enhanced specific brain network connectivity, correlating with improved accuracy.
Conclusions:
- Individuals with chronic TBI exhibit distinct behavioral and neurofunctional patterns compared to healthy controls.
- Methylphenidate (MPh) treatment can significantly improve cognitive performance, particularly visuospatial planning and executive functions, in TBI patients.
- MPh positively modulates brain activity and connectivity, offering a potential therapeutic avenue for cognitive deficits post-TBI.
Related Concept Videos
01:30Attention-Deficit/Hyperactivity Disorder
68
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
68
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
125
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.
125
01:14Role of Cerebellum and Prefrontal Cortex in Memory
430
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...
430