Phobias
Phobias - Related Videos
01:09
Preparedness and Phobias
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2024
Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
08:52
The Attentional Blink
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University In order for recognition of a certain stimulus to take place, visual attention needs to be directed towards said stimulus. To the earliest parts of the visual system, objects are not objects, they are collections of visual features-lines, corners, changes in texture, color, and light. Attention is the resource that is necessary for later processing in order to recognize what a given bundle of features adds up to. This makes...
07:47
Anxiety Testing
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2023
Anxiety is a commonly observed behavioral disorder that stems from fear. It is described as increased restlessness, or unpleasant feelings of fear over anticipated events. Experimenters often use rodent models to better understand anxiety disorders in humans. They use different paradigms, like exposing rodents to bright spaces or loud sounds, which are known to induce fear. These tests combined with other interventions such as surgery or drug-administration may assist researchers in pinpointing...
09:43
The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents
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Cited by 59 •
2014
This protocol describes the 5-choice serial reaction time task, which is an operant based task used to study attention and impulse control in rodents. Test day challenges, which are modifications of the standard task, increase flexibility of the task and can be combined with other manipulations to more fully characterize behavior.
10:45
Brain Imaging Investigation of the Neural Correlates of Observing Virtual Social Interactions
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Cited by 10 •
2011
This article demonstrates an experimental design in which whole-body animated characters are used in conjunction with functional magnetic resonance imaging (fMRI) to investigate the neural correlates of observing virtual social interactions.
FAQs
Selective serotonin reuptake inhibitors, or SSRIs, reduce the reuptake of serotonin, thereby increasing its availability for neural signaling. This mechanism targets signaling involved in fear and anxiety rather than the feared object or situation itself. Their role is especially relevant when pharmacological treatment is considered for social anxiety and related conditions, alongside broader treatment planning.
Benzodiazepines enhance the activity of gamma-aminobutyric acid, a neurotransmitter associated with inhibitory signaling in the nervous system. This produces short-term anxiolytic effects, which can reduce anxiety during limited periods. However, their temporary action distinguishes them from approaches intended to address fear learning, avoidance, or longer-term management of phobia-related difficulties.
Phobia types differ in their clinical context and in how strongly avoidance and fear learning shape the problem. The overview identifies medication use as variable, while exposure-based therapy is often central, particularly for specific phobias. Pharmacological decisions therefore require attention to the particular phobia and to whether medication complements, rather than replaces, therapeutic work.
For specific phobias, exposure-based therapy often remains central because treatment addresses the relationship between fear, avoidance, and the triggering situation. Pharmacological approaches instead modify neural signaling involved in anxiety. Considering both perspectives helps distinguish symptom-focused effects from interventions aimed at fear-related learning and avoidance, supporting more informed treatment planning.
Researchers may examine pharmacological approaches when investigating neural signaling involved in fear and anxiety, or when evaluating treatment options for social anxiety and related conditions. Such work can compare the effects of increased serotonin availability with enhanced gamma-aminobutyric acid activity. These studies also support efforts to develop more precise interventions for fear and avoidance.
Pharmacological research can clarify how different forms of neural signaling contribute to anxiety, fear learning, and avoidance. SSRIs and benzodiazepines provide contrasting examples: one increases serotonin availability by reducing reuptake, while the other enhances gamma-aminobutyric acid activity for short-term anxiolytic effects. Comparing these mechanisms helps researchers consider benefits, limitations, and more targeted interventions.