Is Donald Sterling Suffering From Dementia?

Is Donald Sterling in his right mind?

Now, in yet another stunning about face, Sterling says he will fight the sale of the LA Clippers to former Microsoft CEO, Steve Ballmer for two billion dollars. 

In a just-released statement Sterling says: "I have decided that I must fight to protect my rights. I love the team and have dedicated 33 years of my life to the organization. I intend to fight to keep the team."

Today show host Matt Lauer asked Sterling's lawyer, Bobby Samini, the question the whole nation is wondering.

"Is Donald Sterling mentally stable?"

Samini responded, "There is no issue as to his mental capacity."

Meanwhile, The New York Times today reports that Sterling's wife Shelly, demanded that her husband undergo mental tests after he gave his now-notorious interview to Anderson Cooper four weeks ago where he ripped basketball legend Magic Johnson.

He also broke into sobs when he spoke about his relationship with former lady friend V Stivano, who is 51 years younger, saying, "I was stupid. How could a girl care for a man, 51 years older?"

Two L.A. neurologists examined Sterling and diagnosed him with cognitive impairment, according to the Times. That diagnosis allowed Shelly to sell the team without her 80-year-old husband's approval.

We asked New York neurologist Dr. Juline Bryson to explain the kind of tests given to Sterling.

"We will start off with a mini-metal status examine. This is just a series of questions asking them to do simple things such as, can you write a sentence, close your eyes, where are we, where do you live, things like that," explained Dr. Bryson.

Hear More from Dr. Bryson

So, could Donald Sterling's on-again, off-again behavior about selling the Clippers be a sign of mental impairment?

Bryson says, "Actually changing one's mind back and forth does not necessarily mean dementia. It could mean many things. It could mean anxiety. It can mean depression."