Ani had never experienced any symptoms of depression until her mother died. ani's doctor tells her that she was probably predisposed to depression but did not actually exhibit symptoms until a major life event triggered the depression. the model best fits with the doctor's assessment of ani's depression. humanistic diathesis–stress phrenological psychical

Mourning

Explanation:

Mourning is grief that an individual has inside but express it outside. It can be described as the grief gone to the public or we can say that the grief is expressed outwardly. In this term, no one is right but only can mourn. To express the feeling, crying, art, and music is the way to pay some deeds to a dead person. Spacial anniversary dates for a dead person are some examples of mourning.  

Thus here in the above statement Mr. Bergman's wife dead, his family, friends, colleagues wore a black dress, attend the funeral and participated in the burial services. Mr. Bergman covered all things with black clothes because of their tradition and show mourning to the dead person.