Jove
Visualize
Contact Us
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 Concept Videos

Cross-Sectional Research01:50

Cross-Sectional Research

12.5K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.5K
Finding Volume Using Cross-Sectional Area01:24

Finding Volume Using Cross-Sectional Area

61
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
61
Profile Leveling and Cross Sections01:26

Profile Leveling and Cross Sections

1.6K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes.  Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.6K
Spinal Cord: Cross-sectional Anatomy01:16

Spinal Cord: Cross-sectional Anatomy

4.6K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
4.6K
Cognitive Dissonance01:38

Cognitive Dissonance

37.5K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
37.5K
Crossing Over01:34

Crossing Over

171.7K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
171.7K

You might also read

Related Articles

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

Sort by
Same author

Community-Based Exercise for Chronic Pain in People with Spinal Cord Injury: A Pragmatic Randomized Controlled Trial.

Archives of physical medicine and rehabilitation·2026
Same author

Female participation in randomized controlled trials of motor rehabilitation after spinal cord injury: a systematic review.

Spinal cord·2026
Same author

Using case-mixes to understand health resource utilization trajectories among older adults at high risk of falls who received baseline geriatrician-based Falls Prevention Clinic care.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same author

Responsiveness, Minimal Clinically Important Difference, and Predictive Validity of the ArmCAM in Stroke Rehabilitation: A Remotely Delivered Upper Extremity Function Assessment.

Archives of physical medicine and rehabilitation·2026
Same author

FLOW Trial - The effect of fluoxetine combined with exercise on motor recovery after stroke: an RCT.

Archives of physical medicine and rehabilitation·2026
Same author

Physical Activity and Mental Health in Persons With a Spinal Cord Injury Living With Chronic Pain: Baseline Data From the Exercise Guideline Promotion and Implementation in Chronic Spinal Cord Injury Randomized Controlled Trial.

Adapted physical activity quarterly : APAQ·2026
Same journal

Nighttime light exposure is associated with metabolic dysfunction in schizophrenia: A cross-sectional analysis of the LENS study.

Sleep·2026
Same journal

Sleep Need Outcompetes Preparation: Reframing Sleep Initiation Through Naturalistic Behaviour.

Sleep·2026
Same journal

The Quest for Automated Pediatric Sleep Scoring: Are We There Yet?

Sleep·2026
Same journal

Sex Differences in the Sleep Architecture and Sleep-Disordered Breathing in C57BL/6 J Mice.

Sleep·2026
Same journal

Differential Effects of Prenatal Depression and Anxiety on Infant Sleep: Dual-Pathway Mechanisms Involving the HPA Axis and the Gut-Brain Axis.

Sleep·2026
Same journal

Metabolic Syndrome and Obstructive Sleep Apnea: Two Sides of the Same Coin.

Sleep·2026
See all related articles

Related Experiment Video

Updated: Jan 28, 2026

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
07:42

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

3.7K

Sleep and cognitive function in chronic stroke: a comparative cross-sectional study.

Ryan S Falck1, John R Best1, Jennifer C Davis2

  • 1University of British Columbia, Faculty of Medicine, Aging, Mobility and Cognitive Neuroscience Laboratory, Djavad Mowafaghian Centre for Brain Health and Centre for Hip Health and Mobility, Vancouver, BC, Canada.

Sleep
|February 27, 2019
PubMed
Summary
This summary is machine-generated.

Older adults with stroke experience poorer sleep quality, including increased fragmentation. Poor sleep quality exacerbates cognitive deficits in stroke survivors, highlighting its impact on recovery and cognitive function.

Keywords:
actigraphycognitive functionepidemiologysleep and the brainstroke

More Related Videos

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling
03:46

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling

Published on: October 11, 2018

11.0K
Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.3K

Related Experiment Videos

Last Updated: Jan 28, 2026

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
07:42

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

3.7K
Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling
03:46

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling

Published on: October 11, 2018

11.0K
Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
04:33

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

Published on: April 26, 2024

1.3K

Area of Science:

  • Neurology
  • Sleep Science
  • Gerontology

Background:

  • Poor sleep is prevalent after stroke, hindering recovery and potentially worsening cognitive decline.
  • Understanding sleep differences between older adults with and without stroke is crucial.
  • The impact of sleep quality on cognitive function in stroke survivors requires further investigation.

Purpose of the Study:

  • To compare sleep quality in older adults with and without a history of stroke.
  • To determine if poor sleep quality amplifies cognitive performance deficits in older adults with stroke.
  • To examine the association between sleep quality and cognitive performance in stroke survivors.

Main Methods:

  • Compared sleep quality using MotionWatch8 (MW8) and Pittsburgh Sleep Quality Index (PSQI) in 35 older adults with stroke and 35 controls.
  • Assessed cognitive performance using the Alzheimer's Disease Assessment Scale Plus (ADAS-Cog Plus).
  • Analyzed group differences and interactions between sleep quality and stroke history on cognitive outcomes.

Main Results:

  • Older adults with stroke exhibited longer sleep duration and greater sleep fragmentation via MW8 compared to controls.
  • No significant differences in PSQI scores were observed between groups.
  • A significant interaction indicated that poor sleep quality (fragmentation and efficiency) accentuated cognitive performance differences between groups on the ADAS-Cog Plus.

Conclusions:

  • Older adults with stroke demonstrate poorer objective sleep quality than their non-stroke counterparts.
  • Poor sleep quality, particularly increased fragmentation and reduced efficiency, significantly worsens cognitive performance in older adults with stroke.
  • Addressing sleep disturbances is critical for optimizing cognitive recovery and function in post-stroke individuals.