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 (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)

Reaction time to detect a phoneme target in a sentence was found to be faster when the word in which the target occurred formed part of the semantic focus of the sentence. Focus was determined by asking a question before the sentence; that part of the sentence which comprised the answer to the sentence was assumed to be focussed. This procedure made it possible to vary position of focus within the sentence while holding all acoustic aspects of the sentence itself (...) constant. It is argued that sentence understanding is facilitated by rapid identification of focussed information. Since focussed words are usually accented, it is further argued that the active search for accented words demonstrated in previous research should be interpreted as a search for semantic focus. (shrink)

Talkers are recognized more accurately if they are speaking the listeners’ native language rather than an unfamiliar language. This “language familiarity effect” has been shown not to depend upon comprehension and must instead involve language sound patterns. We further examine the level of sound-pattern processing involved, by comparing talker recognition in foreign languages versus two varieties of English, by English speakers of one variety, English speakers of the other variety, and non-native listeners. All listener groups performed better with native than (...) foreign speech, but no effect of language variety appeared: Native listeners discriminated talkers equally well in each, with the native variety never outdoing the other variety, and non-native listeners discriminated talkers equally poorly in each, irrespective of the variety's familiarity. The results suggest that this talker recognition effect rests not on simple familiarity, but on an abstract level of phonological processing. (shrink)

Language production and comprehension are intimately interrelated; and models of production and comprehension should, we argue, be constrained by common architectural guidelines. Levelt et al.'s target article adopts as guiding principle Ockham's razor: the best model of production is the simplest one. We recommend adoption of the same principle in comprehension, with consequent simplification of some well-known types of models.

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)

Few aspects of social behavior tell us more about a culture than those practices that involve the roles it assigns to models and copies. Under interpretation, such conduct reveals its attitudes toward authority and antiquity, its sense of identity and regard for security, and the relative importance that it attached to imitation and invention. To varying degrees, all societies display these concerns, but in none were they so firmly grounded in a considered theory of the relation between prototype and derivative (...) as they were in Byzantium. An example from the domain of law will illustrate, though not explain, this cultural difference. As against the Roman tradition in which the use of copies as evidence in court was prohibited, at least from the tenth century on Byzantine tribunals accepted the legitimacy of certified copies of documents. The very word used for an official copy—ison, meaning equal— suggests the conceptual distinction between it and the terms copie, Kopie, kopiya, and so on, in modern languages, all derived from the Latin word for abundance. (shrink)

Clahsen proposes two distinct processing routes, for regularly and irregularly inflected forms, respectively, and thus is apparently making a psychological claim. We argue that his position, which embodies a strictly linguistic perspective, does not constitute a psychological processing model.

In the course of his closing remarks at the Copenhagen Congress, the then President of the Association International des Études Byzantines reminded those who worried about the state of our field of “the rule that science may begin with imagination but … rests on factual documentation rather than conjecture”. As one who was (and is) less troubled about the way things were (and are) going, an art historian may be permitted to point to an example in which a document can (...) be shown to corroborate educated guesswork, and consequently to demonstrate one way in which peace between the two camps can (at least on this occasion) be achieved. The result may not be the absolute certainty demanded by our ancien président, but it comes as close to proof as anything available in a domain notorious for its lack of “factual documentation”. The method in question is triangulation—a third datum brought to bear on two previously known bodies of evidence—and the example that of the Middle Byzantine silks that display images of eagles. At issue is the belief that surviving examples were originally gifts offered to foreigners who in turn presented them to institutions or individuals of the Latin church. (shrink)

Si oblitus fuero tui, Jerusalem, oblivioni detur dextera mea.” When Jerome commented on Ps. 136.5, he interpreted the passage allegorically. Sitting in exile by the waters of Babylon, the Israelites had hung their harps on the willows and, in a foreign land, would not sing the songs of Zion. Yet they refused to forget their origin, preferring, as King James's translators put it, that “my right hand forget her cunning.” Jerome observes that this is always the hand whose work remembers (...) the Lord. Yet clearly, by the early fifth century, the idea of manual dexterity had become a trope, a figure in some higher argument. Augustine compares the “lower gods”, reduced to performing menial tasks in the administration of the universe, to workers in the silversmiths' quarter through whose many hands a vessel passes before it is finished, even if it could have been perfected by any skilled member of their team. Slightly more pragmatically, Justinian's Digest mentions a piece of silver plate, brought on approval to a client's house by a uascularius but then inadvertently destroyed, as an instance actionable under the laws of contract. (shrink)

The central thesis of our target article is that feedback is never necessary in spoken word recognition. In this response we begin by clarifying some terminological issues that have led to a number of misunderstandings. We provide some new arguments that the feedforward model Merge is indeed more parsimonious than the interactive alternatives, and that it provides a more convincing account of the data than alternative models. Finally, we extend the arguments to deal with new issues raised by the commentators (...) such as infant speech perception and neural architecture. (shrink)