[trussell]

"If Terri has the ability to comprehend language and supposedly laugh and respond to the context of what she heard, then why doesn't Terri laugh when you say, "Terri, please laugh.'

It is easier for me to laugh if I have found something to be funny. For someone to tell me to laugh, most often, I cannot force a convincing sounding laugh.

[trussell]

Ping

[cyn]

Hi, that's right. Her brother says he elicits a response from her -- lol, knowing brothers, he sure can.

Another factor -- Kate Adamson (the woman mentioned in post #9) said she was exhausted after blinking just a time or two in attempt to communicate her awareness. It's not as if it can be done totally "on command".