Error monitoring in speech production: a computational test of the perceptual loop theory

A theory of speech monitoring, proposed by Levelt (1983), assumes that the quality of one's speech is checked by the speech comprehension system. This system inspects one's own overt speech but would also inspect an inner speech plan ("the inner loop"). We have elaborated and tested this theory by way of formalizing it as a computational model. This model includes a new proposal concerning the timing relation between planning the interruption and the repair: the proposal that these two processes are performed in parallel. We attempted to simulate empirical data about the distribution of error-to-cutoff and cutoff-to-repair intervals and the effect of speech rate on these intervals (these intervals are shorter with faster speech). The main questions were (1) Is an inner monitor that utilizes the speech perception system fast enough to simulate the timing data? (2) Can the model account for the effects of speech rate on these intervals? We conclude that including an inner loop through the speech comprehension system generates predictions that fit the empirical data. The effects of speed can be accounted for, given our proposal about the time course of planning interruption and repair. A novel prediction is that the error-to-cutoff interval decreases with increasing position in the phrase.     

The interplay of meaning,sound, and syntax in sentence production

A discussion of modularity in language production processes, with special emphasis on processes for retrieving words and building syntactic structures for a to-be-uttered sentence, is presented. The authors' 1st goal was to assess the extent to which information processing is encapsulated between different processing stages. In particular, they assessed whether the input from one processing stage to the next is minimal and whether the flow of information in the system is strictly unidirectional. On the basis of the reviewed evidence, they conclude that both assumptions have to be revised. Their 2nd goal was to propose an altemative framework that does not assume strict encapsulation but that maintains multiple levels of integration for production.     

Effect of timing of information about mitigating circumstances on emotional responses to provocation and retaliatory behavior

To determine whether the reduction of retaliatory behavior by knowledge of mitigating circumstances is due to less motivation to retaliate or to an inhibition of motivated retaliation, subjects were provoked by a rude experimenter and informed of mitigating conditions (a) before provocation, (b) after provocation, or (c) not at all. Physiological data revealed that prior knowledge of mitigation prevented pronounced excitatory responses to prococation. In contrast, when mitigating conditions were not known, excitatory responses to provocation were intense. In addition, when mitigating information was supplied after provocation, excitatory responses decayed more rapidly than when no such information was supplied. Retaliatory behavior, as measured in complaints about the rude experimenter, was substantially lower in the condition in which mitigation preceded provocation than in the other two conditions. The retaliatory behavior of subjects who were informed of mitigation after being provoked did not differ significantly from that of subjects who were not informed of mitigation. The findings were interpreted as incompatible with the assumption that under mitigating conditions retaliation is motivated but inhibited and as generally supportive of the proposal that mitigation attenuates the response to provocation. In order to explain the failure of the reception of mitigating information after provocation to reduce retaliatory behavior in spite of the observed facilitation of excitatory decay, it was suggested that when subjects were experiencing high levels of anger, they formed a behavioral disposition to retaliate, which outlasted the state of elevated arousal.     

Social Costs of Smoking: Effects of Tobacco Smoke on Hostile Behavior1

Male and female undergraduates interacted with a same-sex experimenter and a same-sex assistant of the experimenter. Either the experimenter or the assistant smoked. Subjects were provoked or not provoked by the experimenter and then smoked. Subjects were provoked or not provided by the experimenter and then provided with an opportunity to treat him or her in a hostile manner. Additionally, subjects were classified as smokers or nonsmokers and as supporting or opposing smoking in public places. Tobacco smoke was found to facilitate hostile behavior whether or not subjects were independently annoyed and whether or not it originated from the annoyer or a bystander. No sex differences were observed in this effect. Also, no appreciable difference was observed in the hostile behavior of smokers and nonsmokers. Persons opposed to public smoking reacted more strongly to the provocation than persons supportive of public smoking, but this effect was independent of the presence or absence of smoke.     

Empathetic perception of emotional displays in films as a function of hedonic and excitatory state prior to exposure

A film clip depicting a young couple in a dysphoric encounter was seen following one of four film segments that were selected and pretested to effect a factorial variation in (a) hedonic tone (positive, negative) and (b) excitatory potential (low, high). Reactions to the subsequent film were assessed via ratings to test predictions from excitation-transfer theory and to determine sequential effects in hedonically valued experiences. In a first experiment, in which the subsequent film was viewed immediately after the antecedent film, a nearly significant distraction effect of excitation occurred, that is, affective responses to the subsequent film were less intense following high-excitation films than following low-excitation films. In a second experiment, in which the procedure employed in the interval between films was changed to foster close attention to the subsequent film, an excitation-transfer effect was observed, with the dysphoric encounter being perceived as sadder after high-excitation films than after low-excitation films. In both experiments, hedonic-set effects were also observed. The role of cognitive adjustment in excitation transfer was discussed.     

Viewer's moral sanction of retribution in the appreciation of dramatic presentations

An audiovisually presented fairy tale, which involved provocation and retaliation as the central theme, was created in three versions. Relative to the provocation, retaliation was too mild, equitable, or too severe. Children at the developmental stages of expiatory retribution (4-yr olds) and equitable retribution (7- and 8-yr olds) served as subjects. Appreciation of the presentation was measured in facial displays, in structured interviews, and in ratings. Consistently across measures, it was found that for children at the stage of expiatory retribution, appreciation increased with the severity of the retaliatory acts. Children at the stage of equitable retribution, in contrast, appreciated equitable retaliation the most. At this stage, inequitable retaliation (too mild or too severe) was found to impair appreciation significantly. The findings were interpreted as consistent with the proposal that the depiction of punitive, retaliatory activities will be enjoyed the more, the closer they approximate the viewer's moral expectations.     

Concurrent processing of words and their replacements during speech

Two picture naming experiments, in which an initial picture was occasionally replaced with another (target) picture, were conducted to study the temporal coordination of abandoning one word and resuming with another word in speech production. In Experiment 1, participants abandoned saying the initial name, and resumed with the name of the target picture. This triggered both interrupted (e.g., Mush- …scooter) and completed (mushroom …scooter) productions of the initial name. We found that the time from beginning naming the initial picture to ending it was longer when the target picture was visually degraded than when it was intact. In Experiment 2, participants abandoned saying the initial name, but without resuming. There was no visual degradation effect, and thus the effect did not seem to be driven by detection of the stopping cue. These findings demonstrate that planning a new word can begin before the initial word is abandoned, so that both words can be processed concurrently.     

Language integration in bilingual sentence production

To what extent are processes used in sentence production integrated between the different languages of a bilingual and to what extent are they kept separate? We consider three models that differ in their assumptions about the degree of integration: De Bot's [De Bot, K. (1992). A bilingual production model: Levelt's Speaking model adapted. Applied Linguistics, 13, 1-24] bilingual blueprint of the speaker, Ullman's [Ullman, M. T. (2001). The neural basis of lexicon and grammar in first and second language: The declarative/procedural model. Bilingualism: Language and Cognition, 4, 105-122] declarative/procedural model of bilingualism, and Hartsuiker et al.'s [Hartsuiker, R. J., Pickering, M. J., & Veltkamp, E. (2004). Is syntax separate or shared between languages? Cross-linguistic syntactic priming in Spanish/English bilinguals. Psychological Science, 15, 409-414] integrated model. A review of the evidence from bilingual sentence production studies shows that Hartsuiker et al.'s predictions are supported, but argues against the other two models. We discuss some repercussions for bilingual language use.     

Pornography's Impact on Sexual Satisfaction1

Male and female students and nonstudents were exposed to videotapes featuring common, nonviolent pornography or innocuous content. Exposure was in hourly sessions in six consecutive weeks. In the seventh week, subjects participated in an ostensibly unrelated study on societal institutions and personal gratifications. On an especially constructed questionnaire, subjects rated their personal happiness regarding various domains of experience; additionally, they indicated the relative importance of gratifying experiences. Exposure to pornography was without influence on the self-assessment of happiness and satisfaction outside the sexual realm (e.g., satisfaction deriving from professional accomplishments). In contrast, it strongly impacted self-assessment of sexual experience. After consumption of pornography, subjects reported less satisfaction with their intimate partners—specifically, with these partners' affection, physical appearance, sexual curiosity, and sexual performance proper. In addition, subjects assigned increased importance to sex without emotional involvement. These effects were uniform across gender and populations.