“…In this line, it is shown that OB local activity is elevated in animals during fear 10 , 12 . Furthermore, human and animal studies show that allergic respiratory diseases, such as allergic rhinitis, are associated with cognitive and psychiatric abnormalities as well as disrupted brain activity 2 , 6 , 8 , 14 , 15 , 19 – 21 , which are suggested to be mediated by changes in OB function due to olfactory sensory neurons (OSNs) dysfunction 10 , 22 – 24 . Furthermore, OB activity is believed to be strongly entrained by respiration, a phenomenon which might have substantial contributions to different behaviors 10 , 12 , 18 .…”