Volcanologists classify eruptions into several different types. Some are named for particular volcanoes where the type of eruption is common; others concern the resulting shape of the eruptive products or the place where the eruptions occur. Here are some of the most common types of eruptions:
The study of anxiety is at the root of psychoanalytic explorations of the human condition. Anxiety is a warning signal that danger is present and that overwhelming emotions may be felt, giving rise to unmanageable helplessness. The danger may be perceived as arising from internal or external sources, and be the response to a variety of powerful phantasies in the unconscious mind.
Scientists have recently discovered keys to the neural mechanisms behind the brainâs response to fear, including its extinction, which may help improve treatments for anxiety disorders and other neuropsychiatric conditions.The amygdala is essential for decoding emotions, particularly threatening stimuli.Anxiety is a psychological response to perceived danger.â. Fear is generated by a specific stimulus. Seeing a snake in the grass, for example, can trigger a fear response. Anxiety, which is not necessarily tied to a specific stimulus, is a feeling of being at risk, but from no imminent danger.