Input to verbal working memory: Preattentive construction of the central speech representation

Working memory uses central sound representations as an informational basis. The central sound representation is the temporally and feature-integrated mental representation that corresponds to phenomenal perception. It is used in (higher-order) mental operations and stored in long-term memory. In the bottom-up processing path, the central sound representation can be probed at the level of auditory sensory memory with the mismatch negativity (MMN) of the event-related potential. The present paper reviews a newly developed MMN paradigm to tap into the processing of speech sound representations. Preattentive vowel categorization based on F1-F2 formant information occurs in speech sounds and complex tones even under conditions of high variability of the auditory input. However, an additional experiment demonstrated the limits of the preattentive categorization of language-relevant information. It tested whether the system categorizes complex tones containing the F1 and F2 formant components of the vowel /a/ differently than six sounds with nonlanguage-like F1-F2 combinations. From the absence of an MMN in this experiment, it is concluded that no adequate vowel representation was constructed. This shows limitations of the capability of preattentive vowel categorization.     

The Paradox of Howard Becker’s Intellectual Identity

Howard S. Becker, best known as a sociologist of deviance, claims that he “never really did work on deviance as such.” Why does he say this? The fortuitous nature of his entry into the field, his belief that deviance is not an analytic category, and the amount of time, energy, and commitment he has invested in this as opposed to other fields, play a role in this stance. In all likelihood, contrary to his wish, Howard Becker will always be regarded as a deviance researcher.     

Structures And Structuralism In Contemporary Philosophy Of Mathematics

In recent philosophy of mathematics avariety of writers have presented ``structuralist'views and arguments. There are, however, a number ofsubstantive differences in what their proponents take``structuralism' to be. In this paper we make explicitthese differences, as well as some underlyingsimilarities and common roots. We thus identifysystematically and in detail, several main variants ofstructuralism, including some not often recognized assuch. As a result the relations between thesevariants, and between the respective problems theyface, become manifest. Throughout our focus is onsemantic and metaphysical issues, including what is orcould be meant by ``structure' in this connection.     

Distraction and facilitation--two faces of the same coin?

Unexpected and task-irrelevant sounds can capture our attention and may cause distraction effects reflected by impaired performance in a primary task unrelated to the perturbing sound. The present auditory-visual oddball study examines the effect of the informational content of a sound on the performance in a visual discrimination task. The informational content was modulated by varying the sound-target interval and the probability of target occurrence. Effects of informational content were examined with two types of distractors: a burst of white noise (deviant) and environmental sounds (novel). Behavioral results reveal the following. (1) Novel and deviant sounds do not necessarily cause behavioral distraction effects when they are uninformative with respect to both time and probability of occurrence of a visual target. (2) Novel, but not deviant, sounds cause an unspecific bias toward facilitation. (3) The informational content of task-irrelevant sounds speeds reaction times, indicating the use of information not directly related to the task for enhancing performance. (4) It is suggested that performance in deviant and novel trials is the sum of the costs of attentional orienting and benefits of information as well as benefits of unspecific activation for novels.     

Über optische Inversion

Ohne Zusammenfassung     

Experimentelle Untersuchungen über das Entstehen und Vergehen von Gestalten

Ohne Zusammenfassung Mit 39 Textabbildungen und 2 Kurven.     

Individual Values and Preferred Leadership Behaviors: A Study of Romanian Managers

Relationships between individual values and preferred leadership behaviors were examined in a sample of 324 managers from organizations in Romania, a country in transition from a controlled economy to a free‐market system. We found the value dimensions of achievement, benevolence, and power to predict preferences for both transformational and transactional leadership behaviors. Specifically, achievement and benevolence displayed positive relationships with both types of leadership. In contrast, power yielded a positive relationship with the preference for transactional behaviors, but an inverse relationship with the preference for transformational leadership. The implications of these findings are discussed.