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.
Поиск
Chart
Категории
- Arts
- Business
- Computers
- Игры
- Health
- Главная
- 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
Больше
JS Error Handling
JavaScript supports a compact set of statements, specifically control flow statements, that you...
How to study to become a doctor in different countries of the world
How to study to become a doctor in different countries of the world
Australian National...
TOP 10 discoveries and events in the chemical industry in 2021
Another difficult year is behind us. Political, socio-economic and climatic changes every day...
Поймать последнюю волну. Caught by a Wave. (2021)
Невероятно драматическая история любви, которая в свою очередь поведает о двух подростках,...
The Keynesian perspective on market forces
Key points
The Keynesian prescription for stabilizing the economy implies...