Acrophobia

fear of heightsacrophobicafraid of heightsheightsa fear of heightsacrophobefear of flyingfears heightshighhigh anxiety
Acrophobia is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up.wikipedia
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Fear

terrorapprehensionfears
Acrophobia is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up.
For example, if a child falls into a well and struggles to get out, he or she may develop a fear of wells, heights (acrophobia), enclosed spaces (claustrophobia), or water (aquaphobia).

Phobia

phobiasphobicfear
Acrophobia is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up.
The most common are fear of spiders, fear of snakes, and fear of heights.

Fear of falling

basophobiapostural control
Most people experience a degree of natural fear when exposed to heights, known as the fear of falling.
It differs from acrophobia (the fear of heights), although the two fears are closely related.

Head for heights

On the other hand, those who have little fear of such exposure are said to have a head for heights.
To have a head for heights means that one has no acrophobia, an irrational fear of heights, and is not particularly prone to fear of falling or suffering from vertigo, the spinning sensation that can be triggered, for example, by looking down from a high place.

Specific phobia

specific phobiasclass of specific phobiasPhobias
It belongs to a category of specific phobias, called space and motion discomfort, that share both similar causes and options for treatment.

Vertigo (film)

Vertigofilm of 1958John "Scottie" Ferguson
In the Alfred Hitchcock film Vertigo, John "Scottie" Ferguson, played by James Stewart, has to resign from the police force after an incident which causes him to develop both acrophobia and vertigo.
Scottie is forced into early retirement because an incident in the line of duty has caused him to develop acrophobia (an extreme fear of heights) and vertigo (a false sense of rotational movement).

Virtual reality therapy

Virtual reality exposure therapyVirtual RehabilitationVirtual reality exposure (VRE) therapy
There have been a number of studies into using virtual reality therapy for acrophobia.
In 1994–1995, he had solved his own acrophobia in a test use of a third party VR simulation and then set up a 40 patient test funded by Kaiser Permanente.

Alfred Hitchcock

HitchcockHitchcockianSir Alfred Hitchcock
In the Alfred Hitchcock film Vertigo, John "Scottie" Ferguson, played by James Stewart, has to resign from the police force after an incident which causes him to develop both acrophobia and vertigo.
In the film, James Stewart plays Scottie, a former police investigator suffering from acrophobia, who develops an obsession with a woman he has been hired to shadow (Kim Novak).

James Stewart

Jimmy StewartJames "Jimmy" StewartJames M. "Jimmy" Stewart
In the Alfred Hitchcock film Vertigo, John "Scottie" Ferguson, played by James Stewart, has to resign from the police force after an incident which causes him to develop both acrophobia and vertigo.
Stewart's collaboration with Hitchcock ended the following year with Vertigo (1958), in which he starred as an acrophobic former policeman who becomes obsessed with a woman (Kim Novak) he is shadowing.

Steeplejack

Steeplejacks
A head for heights is advantageous for those hiking or climbing in mountainous terrain and also in certain jobs such as steeplejacks or wind turbine mechanics.

Panic attack

panic attacksanxiety attackanxiety attacks
People with acrophobia can experience a panic attack in high places and become too agitated to get themselves down safely.

Classical conditioning

conditioningPavlovian conditioningPavlovian
Traditionally, acrophobia has been attributed, like other phobias, to conditioning or a traumatic experience.

Psychological trauma

traumatraumatizedtraumatic
Traditionally, acrophobia has been attributed, like other phobias, to conditioning or a traumatic experience.

Phonophobia

Ligyrophobiafear of loud noisesloud noises
Recent studies have cast doubt on this explanation; a fear of falling, along with a fear of loud noises, is one of the most commonly suggested inborn or "non-associative" fears.

Visual cliff

visual cliff experiments
Experiments using visual cliffs have shown human infants and toddlers, as well as other animals of various ages, to be reluctant in venturing onto a glass floor with a view of a few meters of apparent fall-space below it.

Infant

neonatalinfancynewborn
Experiments using visual cliffs have shown human infants and toddlers, as well as other animals of various ages, to be reluctant in venturing onto a glass floor with a view of a few meters of apparent fall-space below it.

Toddler

toddlerstoddletoddlerhood
Experiments using visual cliffs have shown human infants and toddlers, as well as other animals of various ages, to be reluctant in venturing onto a glass floor with a view of a few meters of apparent fall-space below it.

Ladder

rope ladderladdersstepladder
While an innate cautiousness around heights is helpful for survival, an extreme fear can interfere with the activities of everyday life, such as standing on a ladder or chair, or even walking up a flight of stairs.

Chair

armchairseatchairs
While an innate cautiousness around heights is helpful for survival, an extreme fear can interfere with the activities of everyday life, such as standing on a ladder or chair, or even walking up a flight of stairs.

Stairs

staircasespiral staircasestairway
While an innate cautiousness around heights is helpful for survival, an extreme fear can interfere with the activities of everyday life, such as standing on a ladder or chair, or even walking up a flight of stairs.

Proprioception

proprioceptivekinestheticproprioceptors
The human balance system integrates proprioceptive, vestibular and nearby visual cues to reckon position and motion.

Vestibular system

vestibularvestibular apparatusvestibular function
The human balance system integrates proprioceptive, vestibular and nearby visual cues to reckon position and motion.

Vertigo

dizzinessvertiginousperipheral vertigo
"Vertigo" is often used (incorrectly) to describe a fear of heights, but it is more accurately a spinning sensation that occurs when one is not actually spinning.

Benzodiazepine

benzodiazepinesbenzodiazapinesbenzo
Many different types of medications are used in the treatment of phobias like fear of heights, including traditional anti-anxiety drugs such as benzodiazepines, and newer options like antidepressants and beta-blockers.