As a reliable and valid measures of perceptual auditory laterality, dichotic listening has been successfully applied in studies in many countries and languages. However, languages differ in the linguistic relevance of change in initial phoneme of words (e.g., for word identification). In the present cross-language study, we examine the effect of these differences on dichotic-listening task performance to establish how characteristics of one's native language affect the perception of nonnative phonological features. We compared 33 native speakers of Norwegian, a language characterized by a clear distinction between voiced and unvoiced initial plosive consonants, with 30 native speakers of Estonian, a language that has exclusively unvoiced initial phonemes. Using a free-report dichotic-listening paradigm utilizing pairs of voiced (/ba/, /da/, /ga/) and unvoiced (/pa/, /ta/, /ka/) stop-consonant vowels as stimulus material, the Norwegian native speakers were found to be more sensitive to the voicing of the initial plosive than the Estonian group. “Voicing” explained 69% and 18% of the variance in the perceptual auditory laterality in the Norwegian and the Estonian sample, respectively. This indicates that experiential differences, likely during acquisition of the mother tongue in early development, permanently shape the sensitivity to the voicing contrast.

To acquire a new word, learners need to create its representation in phonological short-term memory (STM) and then encode it in their long-term memory. Two strategies can enable word representation in STM: universal segmentation and phonological mapping. Universal segmentation is language universal and thus should predict word learning in any language, while phonological mapping is language specific. This study investigates the mechanisms of vocabulary learning through a comparison of vocabulary learning task results in multiple languages. We tested 44 Polish third graders learning English on phonological STM, phonological awareness in Polish and in English, and on three tasks, which involved learning novel word forms in Polish (first language), in English (second language), and in a language that did not resemble any language known to participants (an unknown language). Participants’ English proficiency was controlled through a vocabulary task. The results suggest that word learning engages different mechanisms for familiar and unfamiliar languages. Phonological awareness in English predicted learning second language and unknown language words, and phonological STM predicted learning words of the unknown language. We propose that universal segmentation facilitates word learning only in an unfamiliar language, while in familiar languages speakers use phonological mapping in order to learn new words.

In this article, I present a selective review of research on speech perception development and its relation to reference, word learning, and other aspects of language acquisition, focusing on the empirical and theoretical contributions that have come from my laboratory over the years. Discussed are the biases infants have at birth for processing speech, the mechanisms by which universal speech perception becomes attuned to the properties of the native language, and the extent to which changing speech perception sensitivities contribute to language learning. These issues are reviewed from the perspective of both monolingual and bilingual learning infants. Two foci will distinguish this from my previous reviews: first and foremost is the extent to which contrastive meaning and referential intent are not just shaped by, but also shape, changing speech perception sensitivities, and second is the extent to which infant speech perception is multisensory and its implications for both theory and methodology.

Written word recognition in Chinese links the perception of individual characters with whole words. With experience in reading, a high-quality word representation can provide top-down influence on the perception of its constituent characters, thus producing a word superiority effect (WSE). In experiments using the Reicher–Wheeler paradigm, we examined the WSE in two-character words for native Chinese readers (Experiment 1) and low-proficiency adult Chinese learners with Thai (Experiment 2a) and Indonesian (Experiment 2b) as native language backgrounds. For native Chinese readers, the WSE was smaller for high-frequency than low-frequency characters, reflecting rapid access to more frequently experienced characters and a consequent reduction of top-down word-level effects. Learners of Chinese, however, showed a strong WSE for both low-frequency and high-frequency characters, reflecting less well-established character representations combined with word-level knowledge sufficient to support character recognition. The results suggest that native Chinese readers develop strong representations at both the character and the word level, while low-proficiency Chinese learners are more dependent on the word level. We discuss the possibility that a word-level emphasis Chinese foreign language instruction is one reason for this pattern.

Two major semantic features of emotion concepts have been shown to impact performance in emotion perception tasks: valence and arousal. To design psycholinguistic experiments with emotion terms as stimuli, norms are required that indicate valence and arousal values for individual words. Although such norms are usually obtained from ratings of adults, they are often also used in developmental studies. This procedure raises the question of whether children and adults perceive emotional valence and arousal of words in the same way, and consequently, whether adults’ ratings are adequate when constructing stimulus sets for children. The present study obtained valence and arousal ratings for 48 German emotion terms from three different groups: 9-year-old children and adults tested in a controlled laboratory setting, and adults tested via online survey. Results demonstrate high correlations for valence and arousal across settings. The comparison between children and adults also revealed high correlations, suggesting that children at the age of 9 already display adultlike behavior in their evaluation of emotion terms. A small difference was found for absolute rating values of arousal, with children rating words less arousing than adults. Overall, 9-year-olds and adults are sufficiently similar in their perception of emotion to warrant the use of adult valence and arousal ratings in the analysis of children data.

Identifying individual words is an essential part of the reading process that should occur first so that understanding the structural relations between words and comprehending the sentence as a whole may take place. Therefore, lexical processing (or word identification) has received much attention in the literature, with many researchers exploring the effects of different aspects of word representation (orthographic, phonological, and semantic information of words) in word identification. While the influence of many orthographic and phonological factors in normal reading are well researched and understood (Rayner, 1998, 2009), the effect of semantic characteristics of a word in its identification has received relatively less attention. A complete account of lexical processing during normal reading requires understanding the role of word meaning in lexical processing. Currently, little is understood about whether and how the meaning of an individual word is extracted during early stages of word identification. This article primarily focuses on how word meaning contributes to the process of word identification.

The present study addressed important gaps in the research literature on bilingual development by examining the effects of both mother's and father's education level and age at migration on children's bilingual vocabulary in two different age groups. The sample included 81 preschoolers and 92 preadolescents with two Turkish immigrant parents living in Norway. The children were born in Norway, or migrated to Norway before/at the age of 3. The children completed Norwegian and Turkish vocabulary tests during home visits while mothers provided information regarding both parents’ education and age at migration in structured interviews. Results from hierarchical regression analyses showed that father's education significantly predicted all children's majority (Norwegian) vocabulary scores while mother's education significantly predicted majority vocabulary scores in the preschoolers. Father's education significantly predicted minority (Turkish) vocabulary scores among the preadolescents. Mother's, but not father's, age at migration significantly predicted preschoolers' majority vocabulary scores and preadolescents' minority vocabulary. Hence, the parental background variables predicted minority vocabulary scores only among the preadolescents, not the preschoolers. We conclude that mothers and fathers influence the minority and majority language skills of their bilingual children differently and that their influence varies depending on the age of the child.

Working memory (WM) is one of the most studied cognitive constructs in psychology, because of its relevance to human performance, including language processing. When measuring verbal WM for sentences, the reading span task is the most widely used WM measure for this purpose. However, comparable sentence-level updating tasks are missing. Hence, we sought to develop a WM updating task, which we termed the selective updating of sentences (SUS) task, which taps the ability to constantly update sentences. In two experiments with Finnish-speaking young adults, we examined the internal consistency and concurrent validity of the SUS task. It exhibited adequate internal consistency and correlated positively with well-established working memory measures. Moreover, the SUS task also showed positive correlations with verbal episodic memory tasks employing sentences and paragraphs. These results indicate that the SUS task is a promising new task for psycholinguistic studies addressing verbal WM updating.

Listeners are better at remembering voices speaking in familiar languages and accents, and this finding is often dubbed the language-familiarity effect (LFE). A potential mechanism behind the LFE relates to a combination of listeners’ implicit knowledge about lower level phonetic cues and higher level linguistic processes. While previous work has established that listeners’ social expectations influence various aspects of linguistic processing and speech perception, it remains unknown how such expectations might affect talker recognition. To this end, Mandarin-accented English voices and locally accented English voices were used in a talker recognition paradigm in conditions which paired voices with stereotypically congruent names (Mandarin-accented English voice as Chen and locally accented English voice as Connor) and stereotypically incongruent names (vice versa). Across two experiments, listeners showed greater recall for the familiar, local voices than the Mandarin-accented ones, confirming the basic premise of the LFE. Further, incongruent accent/name pairings negatively affected listeners’ performance, although listeners with experience speaking Mandarin were less influenced by the incongruent accent/name pairings. These results indicate that the LFE, while relying largely on listeners’ ability to parse linguistic information, is also affected by nonlinguistic information about a talker’s social identity.

This study examined the processing of derivational morphology and its association with measures of morphological awareness and literacy outcomes in 30 Dutch-speaking high-functioning dyslexics, and 30 controls, matched for age and reading comprehension. A masked priming experiment was conducted where the semantic overlap between morphologically related pairs was manipulated as part of a lexical decision task. Measures of morphological awareness were assessed using a specifically designed sentence completion task. Significant priming effects were found in each group, yet adults with dyslexia were found to benefit more from the morphological structure than the controls. Adults with dyslexia were found to be influenced by both form (morpho-orthographic) and meaning (morphosemantic) properties of morphemes while controls were mainly influenced by morphosemantic properties. The reports suggest that morphological processing is intact in high-functioning dyslexics and a strength when compared to controls matched for reading comprehension and age. Thus, reports support morphological processing as a potential factor in the reading compensation of adults with dyslexia. However, adults with dyslexia performed significantly worse than controls on morphological awareness measures.

Despite the growing interest in the phenomenon of learning without intention, the incidental learning of phonological features, especially prosodic features, has received relatively little attention. This paper reports an experiment on incidental learning of lexical stress rules, and investigates whether the resultant knowledge can be unconscious, abstract, and rule based. Participants were incidentally exposed to a lexical stress system where stress location of a word is mainly determined by the final phoneme, syllable type, and syllable weight. Learning was assessed by a pronunciation judgment task. Results indicate that participants were able to transfer their knowledge of stress patterns to novel words whose final phoneme was not previously encountered, suggesting that participants had acquired abstract and potentially rule-based knowledge. The combined use of subjective and objective measures of awareness in the present study provides a strong piece of evidence of the acquisition of implicit knowledge.

We investigated the unique effects of morphological awareness on several aspects of reading in Portuguese. We tested 132 Portuguese-speaking children in the fourth grade. Morphological awareness was assessed with a word analogy task that included inflectional and derivational transformations. Results indicated that morphological awareness was a significant predictor of word reading accuracy, word reading fluency, and reading comprehension after controlling for the effects of nonverbal ability and phonological awareness. Morphological awareness also explained unique variance in reading comprehension after adding word reading as a control. In conclusion, morphological awareness has important roles in both word reading and reading comprehension in Portuguese. Educational and clinical implications are discussed.

We examine the role of language production mechanisms in sentence repetition, a task widely used as a diagnostic tool in developmental disorders. We investigate sentence repetition in 5- to 8-year-old native speakers of Kannada, an inflectionally rich language of India. The inflectional characteristics of the language make it an ideal testing ground for exploring the engagement of grammatical and phonological encoding processes. We presented active, passive, and embedded sentences and, in a subset of the material, we also manipulated sentence length. Using accuracy and speech error analyses at the sentence, word, and affix levels, we provide evidence that individual differences in task performance are influenced by the linguistic properties of the material. These findings clarify the role of key language production mechanisms involved in sentence repetition. We propose that it is the versatility to develop a profile across several language production mechanisms that makes sentence repetition particularly useful as a clinical tool.

The present study examines the relative processing efficiency of two typologically diverse configurations of sentential negation: immediately preverbal NEG and unbounded clause-final NEG. In order to effect a head-to-head comparison, the data are drawn from a bilingual speech community in the Afro-Colombian village of San Basilio de Palenque, in which two lexically cognate languages are in contact, differing principally in the placement of the sentential negator: Spanish (preverbal NEG) and the Afro-Hispanic creole language Palenquero (clause-final NEG). The results of a series of experiments suggest that preverbal negation is quite robust, while processing of clause-final negation is degraded under increased cognitive demands. Contextual and pragmatic cues ameliorate the processing of likely negative utterances, while unbounded clause-final negation is more vulnerable in ambiguous utterances. The contrasting behavior of Spanish and Palenquero negation highlights the possible role of processing mechanisms as contributing to typological differences among languages.

An established finding in research on infant-directed speech (IDS) is that vowels are hyperarticulated compared to adult-directed speech (ADS). Studies showing this investigate point vowels, leaving us with a rather weak foundation for concluding whether IDS vowels are hyperarticulated within a particular language. The aim of this study was to investigate a large sample of vowels in IDS and to elicit speech in a natural situation for mother and infant. Acoustical and statistical analyses for /æ:, æ, ø:, ɵ, o:, ɔ, y:, y, ʉ:, ʉ, e:, ɛ/ show a selective increase in formant frequencies for some vowel qualities. In addition, vowels had higher fundamental frequency and were generally longer in IDS, but the difference between long and short vowels were comparable between IDS and ADS. With an additional front articulation and less lip protrusion in IDS compared to ADS, it is argued that IDS is hypoarticulated.

A central issue in spoken word production concerns how activation is transmitted from semantic to phonological levels. Recent evidence from studies of speakers of Western languages supports a cascaded view, according to which under certain circumstances, lexical candidates other than the target can activate their corresponding phonological properties. In the current study, we investigated possible differences between English and Mandarin speakers concerning the degree of cascadedness in the production system, based on the broader recent claim that properties of word form encoding might differ according to languages. With English speakers (Experiment 1), we found that when activation of targets and semantic competitors was boosted via a manipulation of semantic context, then concurrently presented “mediated” distractor words (which were phonologically related to a semantic competitor) generated interference. However, no such mediated priming was found in a parallel experiment with Chinese materials and Mandarin speakers (Experiment 2). These results suggest potential fundamental differences across the target languages in how activation is transmitted during lexical access.

Speakers employ gestures to identify nonpresent objects in nonneutral locations (e.g., pointing to the left to indicate a toy car) and maintain the same spatial locations to indicate the same objects throughout the discourse. These kinds of gestures are referred to as shared-location spatially modulated gestures. Previous research showed that native signers form associations between locations and objects as early as age 5. We examined whether nonsigning children also produced shared-location spatially modulated gestures as early as age 5, and if so, whether such ability is associated with verbal memory, spatial memory, and eductive reasoning (i.e., the ability to derive meaning from the complex situations). Our results showed that nonsigning children use spatial devices in their gestures as early as age 5, but such ability is not well developed until age 7 to 11. It is interesting that different types of cognitive skills may come into play in the production of shared-location spatially modulated gestures across different age groups. We found significant correlations between the production of this type of gesture and spatial memory in the younger children and eductive reasoning in the older children. Thus, there is possibly a developmental shift of the cognitive processes involved in the production of shared-location spatially modulated gestures.