Top-down feedback does not benefit speech recognition; on the contrary, it can hinder it. No experimental data imply that feedback loops are required for speech recognition. Feedback is accordingly unnecessary and spoken word recognition is modular. To defend this thesis, we analyse lexical involvement in phonemic decision making. TRACE (McClelland & Elman 1986), a model with feedback from the lexicon to prelexical processes, is unable to account for all the available data on phonemic decision making. The modular Race model ( (...) class='Hi'>Cutler & Norris 1979) is likewise challenged by some recent results, however. We therefore present a new modular model of phonemic decision making, the Merge model. In Merge, information flows from prelexical processes to the lexicon without feedback. Because phonemic decisions are based on the merging of prelexical and lexical information, Merge correctly predicts lexical involvement in phonemic decisions in both words and nonwords. Computer simulations show how Merge is able to account for the data through a process of competition between lexical hypotheses. We discuss the issue of feedback in other areas of language processing and conclude that modular models are particularly well suited to the problems and constraints of speech recognition. Key Words: computational modeling; feedback; lexical processing; modularity; phonemic decisions; reading; speech recognition; word recognition. (shrink)
Spontaneous self-corrections in speech pose a communication problem; the speaker must make clear to the listener not only that the original utterance was faulty, but where it was faulty and how the fault is to be corrected. Prosodic marking of corrections - making the prosody of the repair noticeably different from that of the original utterance - offers a resource which the speaker can exploit to provide the listener with such information. A corpus of more than 400 spontaneous speech repairs (...) was analysed, and the prosodic characteristics compared with the syntactic and semantic characteristics of each repair. Prosodic marking showed no relationship at all with the syntactic characteristics of repairs. Instead, marking was associated with certain semantic factors: repairs were marked when the original utterance had been actually erroneous, rather than simply less appropriate than the repair; and repairs tended to be marked more often when the set of items encompassing the error and the repair was small rather than when it was large. These findings lend further weight to the characterization of accent as essentially semantic in function. (shrink)
This paper is the report of a meetingthat gathered many of the UK's most senioranimal scientists with representatives of thefarming industry, consumer groups, animalwelfare groups, and environmentalists. Therewas strong consensus that the current economicstructure of agriculture cannot adequatelyaddress major issues of concern to society:farm incomes, food security and safety, theneeds of developing countries, animal welfare,and the environment. This economic structure isbased primarily on competition betweenproducers and between retailers, driving foodprices down, combined with externalization ofmany costs. These issues must be addressed (...) by acombination of legislation, restructuring ofthe market, and use of public funds. Themeeting included workshops that made otherrecommendations for research and education. Themost urgent requirement is recognition thatchange is needed and development of a visionfor what that change must achieve. (shrink)
Abstract This essay draws upon Gramsci?s understandings of law and of the philosophy of praxis to develop a critical analysis of international law in the constitution and potential revolutionary transformation of the contemporary global political economy. The analysis illustrates the analytical utility of Gramscian conceptions of historical bloc and hegemony in capturing the significance of international law as an effective historical force. It also extends these conceptions, theoretically, by arguing that the global political economy is undergoing a process of juridification (...) in which a commodified legal form provides the template for economic and political regulation. The commodity form theory of law is presented as the key to understanding the significance of international law under the culture of global capitalism. (shrink)
This is a reply to Rebecca Taylor's 2017 JOPE article ‘Indoctrination and Social Context: A System-based Approach to Identifying the Threat of Indoctrination and the Responsibilities of Educators’. It agrees with her in going beyond the indoctrinatory role of the individual teacher to include that of whole educational systems, but differs in emphasizing indoctrinatory intention rather than outcome; and in allowing the possibility of indoctrination without individual teachers being indoctrinators at all.
Rebecca Bennett, in a recent paper dismissing Julian Savulescu's principle of procreative beneficence, advances both a negative and a positive thesis. The negative thesis holds that the principle's theoretical foundation – the notion of impersonal harm or non-person-affecting wrong – is indefensible. Therefore, there can be no obligations of the sort that the principle asserts. The positive thesis, on the other hand, attempts to plug an explanatory gap that arises once the principle has been rejected. That is, it holds (...) that the intuitions of those who adhere to the principle are not genuine moral intuitions, but instead simply give voice to mere (non-moral) preferences. This paper, while agreeing that Savulescu's principle does not express a genuine moral obligation, takes issue with both of Bennett's theses. It is suggested that the argument for the negative thesis is either weak or question-begging, while there is insufficient reason to suppose the positive thesis true. (shrink)
Rebecca Bennett, in a recent paper dismissing Julian Savulescu's principle of procreative beneficence, advances both a negative and a positive thesis. The negative thesis holds that the principle's theoretical foundation--the notion of impersonal harm or non-person-affecting wrong--is indefensible. Therefore, there can be no obligations of the sort that the principle asserts. The positive thesis, on the other hand, attempts to plug an explanatory gap that arises once the principle has been rejected. That is, it holds that the intuitions of (...) those who adhere to the principle are not genuine moral intuitions, but instead simply give voice to mere preferences. This paper, while agreeing that Savulescu's principle does not express a genuine moral obligation, takes issue with both of Bennett's theses. It is suggested that the argument for the negative thesis is either weak or question-begging, while there is insufficient reason to suppose the positive thesis true. (shrink)
Speech perception has been a very productive and important area in psycholinguistics. In this review easy, I discuss Cutler's new book on native language listening. Cutler argues for a theory of speech perception, where all speech perception is accomplished by competence in native speech. I review this book and attempt to situate its main contributions in the broader context of cognitive science.
The purpose of this study is to determine after a one year program, the effects of Philosophy for Children on critical thinking skills of a select group of 22 second graders at Saginaw Elementary. These students have had no previous study in Philosophy for Children and met for 170 days, bi-weekly for at least 30-minutes with no more than three sessions missed. It was anticipated there would be a significant positive difference of critical thinking skills of second graders as observed (...) and noted by the teacher, in a recorded journal, prior, during and after the study. The teacher used Rebecca plus the teacher's manual for the basis of instruction. (shrink)