Related Experiment Video

Updated: Oct 7, 2026

Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
10:56

Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice

Published on: August 2, 2017

Sleep influences on homeostatic functions: implications for sudden infant death syndrome

R M Harper1, H C Kinney, P J Fleming

  • 1Department of Neurobiology, the Brain Research Institute, University of California at LA, Los Angeles, CA, USA. rharper@ucla.edu

Respiration Physiology
|March 21, 2000
PubMed

Insights

Sudden Infant Death Syndrome (SIDS) may stem from fetal neural damage affecting breathing and blood pressure responses during sleep. Risk factors include nicotine exposure and sleep position, leading to fatal physiological challenges.

Area of Science:

  • Neuroscience
  • Pediatrics
  • Physiology

Background:

  • Sudden Infant Death Syndrome (SIDS) mechanisms are poorly understood.
  • Potential origins lie in fetal development, causing neural compromise.
  • Deficits may involve neurotransmitter receptor alterations in key brain regions.

Purpose of the Study:

  • To investigate the neural and physiological underpinnings of SIDS.
  • To identify risk factors contributing to SIDS.
  • To explore compensatory mechanisms in infants at risk.

Main Methods:

  • Review of existing research on SIDS pathophysiology.
  • Analysis of neurochemical and cardiovascular control mechanisms.
  • Examination of environmental and developmental risk factors.

Main Results:

  • Fetal neural damage impacts infant responses to physiological challenges during sleep.
  • Nicotine exposure and hypoxic events enhance SIDS risk.
  • Prone sleeping and restricted head positioning are significant risk factors.

Conclusions:

  • SIDS likely results from a neurally compromised infant facing physiological stressors during a critical developmental period.
  • Altered neurotransmitter receptors and impaired compensatory mechanisms contribute to SIDS.
  • Understanding these factors is crucial for SIDS prevention strategies.

More Related Videos

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling03:46

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling

Published on: October 11, 2018

Hypoxia Alters miRNAs Levels Involved in Non-Mendelian Inheritance of Autism Spectrum Disorder in Mice09:13

Hypoxia Alters miRNAs Levels Involved in Non-Mendelian Inheritance of Autism Spectrum Disorder in Mice

Published on: July 11, 2025

Related Concept Videos

Homeostatic Imbalance01:10

Homeostatic Imbalance

Homeostasis is the maintenance of a stable internal environment within the body, which is crucial for the proper functioning of cells, tissues, organs, and organ systems. The body has various control mechanisms that work together to regulate various physiological parameters such as temperature, blood pressure, pH balance, and fluid balance, to name a few. These control mechanisms are based on feedback loops that can be either positive or negative.
However, sometimes these feedback loops fail,...
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Understanding Sleep01:11

Understanding Sleep

Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep Apnea01:21

Sleep Apnea

Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
States of Arousal During Infancy01:30

States of Arousal During Infancy

States of arousal describe an infant’s physiological and behavioral condition during sleep, wakefulness, and activity. These states are regulated by the circadian rhythm, an internal biological clock that organizes daily patterns of rest and alertness. During infancy, arousal is commonly classified into five states: regular sleep, irregular sleep, drowsiness, alert inactivity, and waking activity.Regular and Irregular SleepDuring regular sleep, an infant’s eyes remain closed, breathing is slow...