My reading was "neurological manipulations that reveal the frailty of the rat mind would work on humans, thus our minds are also frail".
My first thought was of the robot controlled by rat neurons, though I know the quote predates this technology.
It seems like your read is close to what he had in mind. Here's the preceeding paragraph, it's from an essay on what makes cyberpunk:
"Human thought itself, in its unprecedented guise as computer software, is becoming something to be crystallized, replicated, made a commodity. Even the insides of our brains aren't sacred; on the contrary, the human brain is a primary target of increasingly successful research, ontological and spiritual question...
Here's the new quotes thread, for all those quotes you were going to post.
Rules: