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<div>Hi Fritz,</div>
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<div>It's interesting to think about an alternative to parameters, so thank you for starting a conversation.</div>
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<div>That said, I can't really think of any syntactic phenomena that have the properties you have mentioned. That is, starting with one look and then completely switching to the opposite is pretty well unattested, as far as I can remember, at least in morphology,
syntax, semantics (subjects, DO clitics, articles, mass-count, double objects, subject case, subject-aux inversion). All of these constructions get studied because there are variations from the adult patterns, but most of them are relatively subtle. </div>
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<div>So, child English speakers start using accusative case pronouns in subject position for a while (e.g. Him cry.), but don't switch to a completely Ergative-Absolutive system (not really sure what that would look like, anyway, but it would probably involve
some interesting forms in object position that we don't ever see). Subject-verb agreement can take a while to develop in Spanish, but kids don't start marking direct object agreement (as in Swahili or Georgian) or indirect object agreement on verbs (as in
Euskera) all of a sudden. </div>
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<div>Most constructions just look adult-like. </div>
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<div>It's like they're not willing to take a stab at a construction until they have a pretty good idea of what's going on and when they do, it looks pretty good. This is Stephen Crain's "conservative learner" (I think that was his phrase) and William Snyder's
"Grammatical Conservatism".</div>
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<div>The exceptions are not that numerous and they are what we spend most of our time thinking about.</div>
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<div>Starting from something that seems unspecified and moving to something that's specified, on the other hand, is maybe more frequently observed. So Brooks and Syrett and Musolino and Pagliarini have observed in separate studies that children's interpretations
of distributive quantifiers like "each" seem to allow them in collective situations. This tolerance gradually goes away and is replaced by a restrictive interpretation.</div>
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<div>I hope that helps.</div>
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<div>Best,</div>
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<div>John</div>
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<div>John Grinstead</div>
</div>
<div>Associate Editor</div>
<div>Language Acquisition: A Journal of Developmental Linguistics</div>
<div>Department of Spanish and Portuguese</div>
<div>The Ohio State University</div>
<div>298 Hagerty Hall - 1775 College Road</div>
<div>Columbus, OH 43210</div>
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<div>Tel. 614.292.8856</div>
<div>Fax. 614.292.7726</div>
<div>grinstead.11@osu.edu</div>
<div><a href="https://u.osu.edu/langlab">https://u.osu.edu/langlab</a>/</div>
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<span style="font-weight:bold">From: </span>Frederick Newmeyer <<a href="mailto:fredericknewmeyer@gmail.com">fredericknewmeyer@gmail.com</a>><br>
<span style="font-weight:bold">Reply-To: </span>"<a href="mailto:info-childes@googlegroups.com">info-childes@googlegroups.com</a>" <<a href="mailto:info-childes@googlegroups.com">info-childes@googlegroups.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, September 25, 2014 1:24 PM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:info-childes@googlegroups.com">info-childes@googlegroups.com</a>" <<a href="mailto:info-childes@googlegroups.com">info-childes@googlegroups.com</a>><br>
<span style="font-weight:bold">Subject: </span>'learning paths' instead of parameters<br>
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<div dir="ltr">Dear colleagues,<br>
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I hope that you don’t mind a question from an outsider who has a very small mastery of the acquisition literature.<br>
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There is a recently-developed approach to formal syntax that has abandoned the idea of innate parameters directing the course of acquisition. In their place, it posits universal ‘learning paths’, determined by ‘general cognitive optimization strategies’, and
whose operation to a considerable degree mimics the work once done by parameter hierarchies. In a nutshell, it posits that for any structural (or constructional?) domain, the child makes the most general hypothesis first, and then gradually over time zeros
in on the adult grammar.<br>
<br>
Let me give a concrete example. Let’s say that a language is consistently head-final except in NP, where the noun precedes its complements. However, there is a definable class of nouns in this language do follow their complements. And a few nouns in this language
behave idiosyncratically in terms of the positioning of their specifiers and complements (much like the English word ‘enough’, which is one of the few degree modifiers that follows the adjective).
<br>
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According to the theory I am describing, the child will go through the following stages of acquisition:<br>
1. First s/he will assume that ALL phrases are head-final, even noun phrases.<br>
2. Next s/he will assume that ALL NPs are head-initial<br>
3. Next s/he will learn the class of exceptions to 2.<br>
4. Finally, s/he will learn the purely idiosyncratic exceptions.<br>
<br>
Is there any evidence that acquisition actually proceeds in this ‘orderly’ manner? I remember from years ago some inconclusive discussion about the ‘subset principle’, but I would very very interested to hear what you have to say about recent work that bears
on the scenario that I have described above.<br>
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Thanks!<br>
<br>
—fritz<br>
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