McKenna's "True Hallucinations..." (Can someone help provide citations?)

[mouthwater]

This thread is a duplicate of this Book Review , which didn't receive much traffic since it was in the Book Reviews forum. Permission to repost said thread in this forum was obtained by Alfa.
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McKenna makes a few claims that he alleges to be true but doesn't provide citations for them. I was hoping somebody could help me locate sources which verify his claims.

The first is:

Destruction of up to 95 percent of the brain does not impair memory function. It appears that memory isn't stored anywhere; memory seems to permeate the brain. Like a hologram, all of the memory seems to be in each part...

Secondly:

I will summarize the state of the art thus: current thinking concludes that the peak of the emergence of intelligence in the galaxy was achieved ten to one hundred million years ago, that most races in the galaxy are very old and sophisticated.

Can anybody help me verify these claims? I'd like to read more about them, and don't have any idea where to start. Any help?

Thanks.

I had some help offsite verify these claims, so I'll post them here for those interested.

Per the first claim, I was recommended to read "The Holographic Universe":

Originally Posted by Xvall

It delves into this aspect. Apparently studies were done with mice, and it turned out that after teaching a number of mice to navigate a maze - regardless of which portion of the brain they decided to remove - all of the mice remembered how to navigate it. (Albeit in a half-assed, half-brained manner.)

I do not know if this extends to the human brain as well, but there seems to be some validity to this claim.

Per the second claim, as provided by Cliff Anderson:

Originally Posted by Space Monkey

I think he's referring to the Drake Equation, although (typically) he overstates the case a bit.

Any further information is welcome.