An examination of attentional control in the auditory modality: Further evidence for auditory orienting

Four experiments are reported that examine attentional control in the auditory modality. In Experiment 1, the subjects made detection responses to the onset of a monaurally presented pure tone that was preceded by a pure-tone cue. On a valid trial, the cue was presented in the same ear as the target; on an invalid trial, it was presented in the contralateral ear to the target; and on a neutral trial, it was presented in both ears. Overall performance was facilitated on valid trials in comparison with invalid trials. In later experiments, the subjects made choice decisions about the location of the target, and significant cuing effects were found relative to the neutral condition. Finally, performance was assessed in the presence of central (spoken) word cues. Here, the content of the cue specified the likely location of the target. Under these conditions, costs and benefits were found over a range of cue-target stimulus onset asynchronies. The results are discussed in terms of automatic and controlled attentional processes.     

A fallacious argument against moral absolutes

The denial of moral absolutes rests, I think, on a seductive but fallacious argument, which I shall attempt both to expound and to refute here. Human beings are highly complex creatures living in a highly complex world. Every human being is different from every other, every interaction or relationship between or among human beings is unique. Hence also every occasion for moral choice is also unique, and all those action kinds - be theyadultery, murder, rape, theft, ortorture on which moralists are accustomed to pass judgment include an enormous variety of differing transactions, which ideally ought to be evaluated one by one. Moreover, each proposed action has a variety of different aspects: intention, foreseen consequence, conventional meaning, and symbolic significance for example, which bear on moral choice in a wide variety of ways. Moral rules are therefore rules of thumb, open to exceptions whenever persuasive arguments for making them are provided.     

The homophile movement: Its impact and implications

Conclusion We do not conclude that homosexuality must be accepted by society. We do hope that society's attitudes towards homosexuals can be more intelligent, less confused. Perhaps our society will reject homosexuality on a basis of manifestly conscious prejudice of the majority who simply find it distasteful; but at least this will be more honest than many current rationalizations. Perhaps it will be possible and desirable because of changing conditions to accept homosexuality in our culture at some future time. Any sincere effort to confront the issues raised by homosexuality in our culture will be rewarded with a deeper understanding of many other aspects of human life.Presented to One Inc., Los Angeles, May 7, 1967.     

The Haskins Laboratories’ pulse code modulation (PCM) system

The pulse code modulation (PCM) method of digitizing analog signals has become a standard both in digital audio and in speech research, the focus of this paper. The solutions to some problems encountered in earlier systems at Haskins Laboratories are outlined, along with general properties of A/D conversion. Specialized features of the current Haskins Laboratories system, which has also been installed at more than a dozen other laboratories, are also detailed: the Nyquist filter response, the high-frequency preemphasis filter characteristics, the dynamic range, the timing resolution for single- and (synchronized) dual-channel signals, and the form of the digitized speech files (header information, data, and label structure). While the solutions adopted in this system are not intended to be considered a standard, the design principles involved are of interest to users and creators of other PCM systems.     

In defence of folk psychology

Conclusion Our argument has been that a commonsense functionalist approach to our folk conception of beliefs and desires shows that it is very likely that they exist, where commonsense functionalism is understood as implicitly defined by our folk practice in moving back and forth between behaviour, situations, and beliefs and desires. Completed neuroscience will indeed provide a complete story about when and why we do what we do, but will incorporate rather than eliminate beliefs and desires in this complete story. The irony is that our defence uses an account of folk psychology fully in accord with that provided by eliminativism's sympathizers when they insist that folk psychology is a theory. They see this insistence as opening the way for serious consideration of the possibility that folk psychology is radically mistaken. Any theory can be radically mistaken. But, of course, folk psychology is radically mistaken for a great many objects — the Taj Mahal, for instance. The Taj Mahal does not have beliefs and desires precisely because it does not satisfy the theory. Our point is that because the theory is a purely functional theory, the evidence that we satisfy it (and for that matter that the Taj Mahal does not) is peculiarly strong evidence.     

On the role of word frequency in the detection of component letters

The experiments reported in this study were conducted to explore the issue of race models versus holistic models of word processing. In both types of model, it is assumed that an available word-level encoding for a display will conceal letter information, and thereby inhibit component-letter detection. However, whereas in holistic models it is assumed that encoding always should occur at the word or pattern level first, in the race models it is assumed that encoding occurs at all levels (e.g., feature, letter, and word) simultaneously, with the final level of encoding being at whatever level has been completed first. If the rate of word-level encoding is facilitated by increasing word frequency, the holistic models predict a generally declining latency for letter detection, because the initial step in letter detection (i.e., word-level encoding) will be occurring more rapidly. The race models, on the other hand, predict that with increasing word frequency there will be an increasing chance that the word-level encoding will win the encoding race, resulting in an increase in the latency for letter detection (i.e., the word code will conceal the letter codes). Two experiments are reported, and the obtained pattern of latency data appears to be most consistent with the race models.