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Related Concept Videos

Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures ll: Types01:19

Seizures ll: Types

Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...
REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
Restless Leg Syndrome and Night Terrors01:27

Restless Leg Syndrome and Night Terrors

Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
Attachment01:20

Attachment

Attachment is vital for infant development, as warm social interactions support growth and well-being. In a classic 1958 study by Harry Harlow, the significance of warmth and comfort in forming attachments was examined. Harlow separated newborn monkeys from their mothers and provided two artificial "mothers": one made of cold wire and the other covered in soft cloth. Despite the wire mother offering food, the infant monkeys preferred the comfort of the cloth mother, demonstrating that physical...

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Related Experiment Video

Updated: Jun 27, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
19:15

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Published on: August 25, 2014

Shaken baby syndrome: does it exist?

D G Talbert1

  • 1Institute of Reproductive and Developmental Biology, Imperial College School of Medicine, London W12 ONN, UK. d.talbert@imperial.ac.uk

Medical Hypotheses
|November 18, 2008
PubMed
Summary

The Shaken Baby Syndrome (SBS) definition is inconsistent, potentially misattributing infant injuries. Research suggests whiplash-like trauma, central to SBS, rarely causes the specified symptoms without contusions, unlike accidental aspiration.

Area of Science:

  • Pediatric Traumatology
  • Forensic Pathology
  • Infant Health

Background:

  • The established definition of Shaken Baby Syndrome (SBS) describes infants with dysphagia, coma, and respiratory distress.
  • Characteristic SBS signs include retinal hemorrhages and subdural bleeding from shearing forces, with cerebral contusions being uncommon.

Purpose of the Study:

  • To evaluate the internal consistency of the Shaken Baby Syndrome (SBS) definition.
  • To explore alternative explanations for infant injuries currently attributed to SBS.

Main Methods:

  • Analysis of historical primate whiplash injury studies.
  • Comparison of injury mechanisms and thresholds for contusions and subdural bleeding.

Main Results:

Related Experiment Videos

Last Updated: Jun 27, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
19:15

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Published on: August 25, 2014

  • Whiplash injuries sufficient to cause coma typically result in visible cerebral contusions.
  • Lower-threshold whiplash can cause axonal injury and contusions without subdural bleeding.
  • Contusions can occur independently of subdural bleeding in whiplash injuries.

    • Conclusions:

    • The SBS definition's exclusion of contusions contradicts whiplash mechanisms.
    • The definition aligns more closely with accidental aspiration in dysphagic infants, suggesting a potential misclassification of "Dysphagic Infant Death Syndrome."
    • Re-evaluation of the SBS definition and diagnostic criteria is warranted.