tag:blogger.com,1999:blog-9048879464910781933.post7661553425566855401..comments2023-10-12T00:25:24.119-07:00Comments on Talking Brains: Hierarchical and Independent Levels of Representation in Speech Production: Discussion of the HSFC ModelGreg Hickokhttp://www.blogger.com/profile/16656473495682901613noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-9048879464910781933.post-30699099697182711972014-03-06T11:28:22.605-08:002014-03-06T11:28:22.605-08:00Thanks, Greg! Maybe broadening the discussion a bi...Thanks, Greg! Maybe broadening the discussion a bit beyond segments, it might be useful to think about the degree to which there's representational (or processing) parity across recognition and production. The default assumption in psycholinguistics has been yes, but it's not clear to me what that would need to be true conceptually (much less whether it's empirically valid).Matt Goldrickhttps://www.blogger.com/profile/16614188116031906824noreply@blogger.comtag:blogger.com,1999:blog-9048879464910781933.post-52720588136007061082014-03-06T08:15:52.137-08:002014-03-06T08:15:52.137-08:00Hi Matt and Adam,
Thanks so much for your post. Y...Hi Matt and Adam,<br />Thanks so much for your post. You make an excellent point, which I will not dispute. With respect to the HSFC, I have to say that my conceptualization of "hierarchical" is not terribly technical. All I really meant to emphasize is that there are at least two levels of control circuits in the brain involved in speech production, one driven by an auditory-motor loop and (capable of) coding larger chunks such as syllables and another driven by a somato-motor loop that is coding smaller chunks of information. I think your claim that syllables and segments are independent-but-related fits my functional neuroanatomical view precisely. I certainly do not mean to imply a view in which the syllable code is built up out of the segments, like complex cells from simple cells in the example you provided. So I think we are in perfect agreement on this and I thank you for clarifying things. It's an important point. It would be fun to see if we can get some traction on working out exactly how syllable frames might be coded neurally and related to segment-sized codes. <br /><br />Now, where we may disagree, and it would be fun to discuss (more), is whether there is a role for segment-sized units in speech recognition. <br /><br />Greg Hickokhttps://www.blogger.com/profile/16656473495682901613noreply@blogger.com