Speech Production Experiment: Prompts______________________________

Subjects were given the following task description.  In the printed
task description, the ARPABET transcriptions shown below were replaced
by appropriate IPA symbols.

--------------------------------------------------------------------

You will be asked to sustain the position of each of the following
vowels for 20-25 seconds at a time while the MRI scans you.  You will
be asked to repeat each vowel approximately 10-15 times.

It is of utmost importance that you keep your mouth and head PERFECTLY
STILL while you are being imaged, that you DO NOT MOVE YOUR HEAD
between two repetitions of the same vowel, and that when you are asked
to repeat a vowel, you repeat it using EXACTLY THE SAME MOUTH SHAPE
each time.

Since most people can not sustain a vowel for 25 seconds, you will be
asked to pretend to say the vowel for 25 seconds, but without
producing any sound.  Please hold your breath during imaging, in order
to avoid the extra movement associated with breathing.  During the
acoustic recording session, you will have a chance to practice
sustaining each vowel both with and without sound.

If you get tired and need a break, please let the MRI technologist
know.  If your need is not urgent, we will take you out of the scanner
at the next break between two vowels (usually in 5-10 minutes).  If
your need is urgent, please tell us, and we will take you out of the
scanner immediately.

The words in the right column are given to show you what the vowel
sounds like, but please do not say the entire word --- JUST THE VOWEL.

Vowel			Sounds Like
/iy/			heed, beat
/uw/			who, boot
/ey/			hey, bait
/ow/			hoe, boat
/ae/			had, bat
/aa/			ha, father
/ih/			hid, bit
/eh/			head, bet
/uh/			hood, put
/ah/			hub, but
/er/			heard, Bert

-------------------------------------------------------

Additions for subject M2:

In addition to the standard set of prompts, subject M2
was asked to produce the following vowel:

/ao/		        caught, hawed

-------------------------------------------------------

Additions for subject M3:

In addition to the standard set of prompts, subject M3
was asked to produce the following sounds:

/el/			bull, pull
/s/			hiss, toss
/sh/			dish, posh
/th/			thin, thick
/t/ closure		top, talk
fronted /k/ closure	key, keep
further-back /k/	cop, call
/l/			la-la, leap