Studies during acute experiences of hallucinations demonstrate increased activity in primary or secondary sensory cortices. As auditory hallucinations are most common in psychosis, most robust evidence exists for increased activity in the left middle temporal gyrus, left superior temporal gyrus, and left inferior frontal gyrus (i.e. Broca's area). Activity in the ventral striatum, hippocampus, and ACC are related to the lucidity of hallucinations, and indicate that activation or involvement of emotional circuitry are key to the impact of abnormal activity in sensory cortices. Together, these findings indicate abnormal processing of internally generated sensory experiences, coupled with abnormal emotional processing, results in hallucinations. One proposed model involves a failure of feedforward networks from sensory cortices to the inferior frontal cortex, which normally cancel out sensory cortex activity during internally generated speech. The resulting disruption in expected and perceived speech is thought to produce lucid hallucinatory experiences.
البحث
Chart
الأقسام
- Arts
- Business
- Computers
- الألعاب
- Health
- الرئيسية
- Kids and Teens
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
إقرأ المزيد
Whiplash. (2014)
A promising young drummer enrolls at a cut-throat music conservatory where his dreams of...
Семь самураев. Seven Samurai. (1954)
Япония, XVI век. В стране полыхает гражданская война, повсюду орудуют банды разбойников и...
The Significance of References: Building Trust and Credibility
In the vast landscape of academia, employment, and various professional endeavors, references...
100+ questions that will save you from awkward silence in online meetings
As work communication moves online, appointments and meetings become somewhat more complex. Body...
Airsoft; is it dangerous?
Airsoft originated in Japan after World War II. Weapons were banned in the country, and the...