पारंपरिक एंटीसाइकोटिक (antipsychotic) दवाओं द्वारा मुख्य रूप से कौन सा न्यूरोट्रांसमीटर प्रभावित या अवरुद्ध होता है?

Which digestive hormone inhibits both gastric secretion and motility, stimulates insulin release, and is secreted mainly when fat is present in the duodenum?

The repeated sequence of gradual onset of apnoea followed by gradual restoration of respiration is called ________.