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C00002 00002	timoth[f86,jmc]		notes on Timothy's development
C00017 00003	airplane
C00019 00004	1988 Jan 10
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timoth[f86,jmc]		notes on Timothy's development

1986 dec 9
	Timothy acquires words in an order that seems mysterious.
So far we have bye-bye, dog, bird, cracker, Big Bird, bang, light.

	His ability to manipulate objects begins with a subroutine for
picking things up.   As far as I can remember putting what was picked
up in his mouth always represented a separate act, as did waving the
thing around and inspecting it.  All this is indicated by his reaction
to light switches.  Sometimes he would operate the switch, but this
was clearly a by-product of the routine for picking it up.

	If babies were to be given switches --- to operate lights
in their rooms, for example --- the switches should be handles that
are pulled with a separate pull for turning the light off.

	At close to a year he got a subroutine for putting one
object into another, e.g. putting the pen into its cap.  Very
shortly he could do some of the tasks that involve putting
an object into a correspondingly shaped hole.

	The general observation is that the ability to make elementary
movements follows the ability to make certain compound movements.

Dec  7
	The Kotowski's brought T a set of Melmac dishes including
big and little plates, a cup and a fork and spoon.  T played with
them in the sense of bringing the cup to his lips, holding the
fork and spoon by the handles and scraping them over the plate.
When T is carried to the front door from the outside he tries
to push the buttons on the combination lock.  Clearly he can now
try to imitate many procedures he has observed.

	The theoretical models of learning to achieve goals are
too narrow for good success, and nature has evolved better ones.
Nature's models involve separation of skill acquisition from
achieving goals.  Imitation and play are important.  If children
practiced a skill only at times when the skill was relevant to
achieving a goal, they would learn far less than they do.
Another important feature of human and animal mentality is the
formation of intermediate states that become independent of
their causes.  For example, when one animal is angry at another,
it may attack even though it is likely to suffer injury or
death.  Correspondingly, love acquires an existence and force
independent of what triggered it.  We need an evolutionary
model of these phenomena, but they give a decisiveness to
human and animal action that would not be present if each
situation were optimized separately on the basis of survival,
food and other ``basic drives''.

Dec 25
	At around a year T showed a large increase in protests
and demands.  These are expressed non-verbally at 13 months
even though verbal behavior is increasing rapidly.  Maybe this
is the reason why T stopped climbing; demanding by uttering
cries became a better way of achieving the goal.  If he were
left alone more, he might climb again.

1987 Jan 8

T is climbing again, though perhaps not as adventurously as before.
He climbs from the hood of the car to the roof and climbs into the
headboard.  He won't climb where he has to hold on with his hands
to prevent falling backward.

Memory span is important.  T can remember a goal, and hence resent
its frustration, longer now.  It is still doubtful whether going
somewhere in the car can be regarded as a part of an event, e.g.
going to the ice cream shop or whether being in the car is a state,
i.e. can he want to go in the car as a way of getting to the ice
cream store.  Actually he probably doesn't anticipate the ice cream
store yet, because he hasn't been there often.  He now uses the
word ``car'' both as an act of naming an object and as a name for
getting in the car.

Jan 10
This evening he was bored and fussing, but when I said "Let's go
in the car", he cheered up instantly.  He can now anticipate.
He is fascinated by the car's controls and spent 15 minutes after
we returned from the Chinese restaurant fiddling with them.

Feb 22
He has difficulty with learning "tree" though not in pronouncing it.
Perhaps "tree" is a difficult perceptual concept for lack of a
definite pattern, i.e. he can't see the tree for the leaves and
branches.

For the last week he has been able to repeat words when he wants to -
not well, but he clearly has learned something from a single hearing.

When I got him blocks and built towers, at first he was angry at
them and knocked them down and kicked the leftovers.  After a few
days he began to try to build them, but can't yet put blocks on
blocks that are on end.  I should build horizontal towers first for
him.

Mar 15
Building towers of horizontal blocks sometimes, but rarely, appeals
to him.  He likes being helped to do a somersault.  I usually have
his doll Andy do a somersault when he does.  Consequently when I
mention somersault, he says, "Andy".  He understands, "Put it back",
and sometimes does it.  He puts lids on.
He is starting to take a few steps again.  It seemed like his desire
to walk independently had a big setback when he caught cold and is
only slowly returning even a couple weeks after the cold is gone.
He likes the HP-28C calculator which I have programmed to play
Frere Jacques, and he sometimes hums the first line - at least getting
the rhythm of the first line.  It seems to me that he also gets the
tune, and Carolyn says he has the tune of something else.

When Hazel showed him a picture of the Ayatollah Khomeni, he said
"Daddy".

April 11
While we were in Japan he started walking - Saturday April 5.

April 21
We took him to see the animals at Hidden Villa Sunday April 19.  He
was much impressed and immediately caught on to feeding the horses
bunches of grass and tried to feed the cat a stone.  He also correlated
the appearance of the animals with the pictures he had previously
seen.

He can now answer questions "What does the X say?" where X ε {horse, turkey,
cow}.  Actually he heard more noise from the sheep than from any other
animal.

April 26
For the last couple weeks he has been fascinated by the keyholes in
the cars and keeps trying keys in them.  This represents noticing what
grownups do and trying to do it, presumably apart from any further
objective.  He knows the right key to open the door of the Cadillac,
but he objects if someone pushes the key all the way in.  Evidently
he has not got the full sequence of operations.  Carolyn just bought
him a small padlock with key.

April 27
Today he got my sweater for me at my request.  He had to go away from
me to the chair to get the sweater and then bring it around the bed.

The next page of vocabulary is up to our departure for Japan in March.

June 10
Hazel's glasses were on the TV across the room.
He said "glasses".  I said "Whose glasses?"  He said correctly "Hazel".
Hazel reported an even longer dialog.

June 11
Let's go Mindy house.

June 21
Many phrases.
The broken ornithopter was in my bathroom for a long time, and T
referred to it as "Broken  birdy".  The ornithopter was taken
downstairs and fixed, and he knows where it is downstairs.  Nonetheless,
he still says "broken birdy" in my bathroom as though he doesn't
regard it as a unique object that cannot be in two places but rather
as a single object.  Would he be surprised by two broken birdies?  I
doubt it.  Would he be surprised by two mamas?  It's hard to believe
he wouldn't.  The experiment could be made using the children of
identical twins.

His mind is still rather unhistorical.  I doubt that "tomorrow" or
even "after lunch" has much meaning for him.  I doubt he remembers
events as distinct from event types.

July 6
	Yesterday he climbed out of the small playpen using the table.
I admit instigating it.  We gave the playpen to Alice ter Meulen for
Tieman.  He can't get out of the big one yet.  Today he went down the
slide on Frenchman's road by himself, climbing the steps and positioning
himself without help.  On the way home he was saying "play piano", and
I couldn't hear any.  Finally, I figured out that he was beating on
my head as though he were playing the piano.  He uses several word
sentences quite freely.  On the way to the playground he said
"lady jogging" and "man jogging".

July 7
	Today he looked at the flower pattern in the rug, tried to
pick it up and said "flower".  It was a rather schematic flower.

He has known Agapanthus for some time.  He knew it before I did.

Aug 4 - Dr. Maneatis was impressed by the clarity of his speech.

Aug 8
	He didn't spend much if any time in the two word phrase stage
but went promptly to longer phrases.

	"Going to the park, picking up broken glass".  He has become
quite expert in finding broken glass.

Aug 13
	Last night I took him to Louie's, and Louie got him an
ice cream cone, his first.  He sat in his booster seat the whole
time we were in the restaurant, conversing and eating his ice cream
and some bits of soup and pot sticker.  More sitzfleisch than I
remember his showing previously.  This morning I mentioned the
cone to Carolyn, and he volunteered, "Daddy spill it", which
Carolyn understood and was correct.  So he has overnight event
memory.
airplane
Andy
baby
ball
balloon
bath
beard
berry
bib
block
big bird
bird
book
bottle
box
button
calculator
car
chair
cheese
chopstick
coat
cookie
cracker
daddy
dark
dirty
dog
door
drink
duck
ear
flower
flute
glass
gone
goose
grandma
green
hair
hand
hose
hot
iron
juice
keys
kitty
kleenex
knee
knife
ladder
lady
light
mail
mama
man
mess
microwave
milk
mouth
moon
no
no-no
nose
pen
phone
piano
pillow
please
plug
rain
raisin
rock
sand
shirt
shoe
slide
sponge
spoon
stair
thank you
towel
tree
umbrella
walk
watch
window
This is the vocabulary as of about 1987 March 25.
1988 Jan 10

Some sentences

jan 9 - "If I push this button the car will stop."

jan 10 - "I can't touch the light bulb, because it's hot."

jan 10 - "He's hungry.  He wants salad."

jan 10 - He put the pencils out so he could write.

feb 4 - This is a bag he put batteries into.

feb 1 - That was quail in those bushes that made that loud noise.
	- That was quail flew out of those bushes.

feb 4 - Where did he get those bottles from?
	- Daddy wondered what he had done.

feb 6 - "Practicing Yertle the Turtle" on being asked why he
was climbing the bathroom sink.

feb 8 - He wants Daddy to reach him up higher so he can reach
those tapes.

feb 29 - There's a parking space just right for us.

mar 19 - What is going on here?