Exploring the Similarity Between Implicit and Explicit Prosody: Prosodic Phrasing and Individual Differences

In recent years, work carried out in the context of the implicit prosody hypothesis (IPH) has called into question the assumption that implicit (i.e., silently generated) prosody and explicit (overtly produced) prosody are similar in form. Focusing on prosodic phrasing, the present study explored this issue using an individual differences approach, and using methods that do not rely on the sentence comprehension tests characteristic of work within the IPH program. A large group of native English speakers participated in a production experiment intended to identify individual differences in average prosodic phrase length, phonologically defined. We then explored whether these (explicit) prosodic differences were related to two other kinds of variation, each with a connection to implicit prosody. First, we tested whether individual differences in explicit prosodic phrase length were predicted by individual differences in working memory capacity, a relationship that has been established for implicit prosody. Second, we explored whether participants’ explicit prosodic phrase lengths were predictive of their behavior in a silent-reading task in which they had to identify their own implicit prosodic groupings. In both cases, the findings are argued to be consistent with a similarity between explicit and implicit prosody. First, participants with higher working memory capacity (as estimated by reading spans) were associated with longer prosodic phrases. Second, participants who produced longer explicit prosodic phrases in speech tended to report generating longer prosodic phrases in silent reading. Implications for the nature of implicit prosody, and how it can be studied, are discussed.

Event-Related Potential Evidence of Implicit Metric Structure during Silent Reading

Under the Implicit Prosody Hypothesis, readers generate prosodic structures during silent reading that can direct their real-time interpretations of the text. In the current study, we investigated the processing of implicit meter by recording event-related potentials (ERPs) while participants read a series of 160 rhyming couplets, where the rhyme target was always a stress-alternating noun–verb homograph (e.g., permit, which is pronounced PERmit as a noun and perMIT as a verb). The target had a strong–weak or weak–strong stress pattern, which was either consistent or inconsistent with the stress expectation generated by the couplet. Inconsistent strong–weak targets elicited negativities between 80–155 ms and 325–375 ms relative to consistent strong–weak targets; inconsistent weak–strong targets elicited a positivity between 365–435 ms relative to consistent weak–strong targets. These results are largely consistent with effects of metric violations during listening, demonstrating that implicit prosodic representations are similar to explicit prosodic representations.

Efeitos do status argumental e de segmentação no processamento de sintagmas preposicionais em português brasileiro

A questionnaire study and a self paced reading experiment investigate the off-line and on-line comprehension of adjunct and argument prepositional phrases (PP) in Brazilian Portuguese. The first study compares NP-attached adjunct and argument PPs and VP-attached adjunct and argument PPs and show a general preference for argument PPs in both cases. The second study presents an experimental design crossing the argument status of PPs (argument or adjunct) and the segmentation type of the sentences that contain the PPs (short or long). Results do not indicate differences in reading times (RT) between adjunct and argument PPs in the first pass of the parser, in contrast with models of sentence processing that predict a rapid initial access to lexical information. Nonetheless, RT differences between adjunct and argument PPs are found in a garden-path configuration, something which is attributed to the reanalysis stage. Segmentation effects are also found and discussed with relation to the Implicit Prosody Hypothesis (Fodor, 1998; 2002).

Lack of Implicit Prosody Effects in Deaf Readers of Japanese

Prosodic contours have been claimed to be implicitly imposed on sentences read in silence, thereby affecting the interpretation of ambiguous constructions (the implicit prosody hypothesis, Fodor 2002). Some of the strongest evidence supporting this hypothesis manipulated the prosodic length of segments (Hirose 2003). However, such manipulations also increase the number of characters in the critical words, thus the results may not reflect the influence of prosodic factors but rather how perceptual mechanisms and working memory handle written words with larger numbers of characters. If so, such results should be replicable with readers who have low ability in handling prosodic information. We report experimental results suggesting that deaf readers are not sensitive to Hirose’s length manipulations. Therefore, the manipulations are likely to be related to prosodic contours rather than some other type of length measurement.