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Musculoskeletal and Neural Physiological Phenomena > Nervous System Physiological Phenomena > Reflex > Reflex, Startle
Behavioral Disciplines and Activities > Behavioral Sciences > Psychophysiology > Reflex > Reflex, Startle
Psychological Phenomena > Psychophysiology > Reflex > Reflex, Startle
... > Natural Science Disciplines > Biological Science Disciplines > Physiology > Psychophysiology > Reflex > Reflex, Startle
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Techniques, Neurological > Neurologic Examination > Reflex > Reflex, Startle
... > Diagnosis > Diagnostic Techniques and Procedures > Physical Examination > Neurologic Examination > Reflex > Reflex, Startle

Preferred term

Reflex, Startle  

Type

  • mesh:Descriptor

Definition

  • A complex involuntary response to an unexpected strong stimulus. The reaction involves physical movement away from the stimulus, MUSCLE CONTRACTION and limb flexion, BLINKING, and changes in HEART RATE, BLOOD PRESSURE, and RESPIRATION. A reflex found in normal infants, observed when the infant is startled or feels the sensation of falling and characterized by sudden extension of the arms. It is only seen in children and adults suffering from disorders of the CENTRAL NERVOUS SYSTEM, and is distinct from the startle reflex found in normal children and adults. Startle reaction elicited by a sudden, unexpected auditory stimulus.

Broader concept

Related concepts

Entry terms

  • Startle Reaction
  • Startle Response

Allowable Qualifier(s)

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URI

http://data.loterre.fr/ark:/67375/JVR-VQCH4H96-S

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