Tuuli H. Morrill

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Recent findings [Dilley and Pitt, 2010. Psych. Science. 21, 1664-1670] have shown that manipulating context speech rate in English can cause entire syllables to disappear or appear perceptually. The current studies tested two rate-based explanations of this phenomenon while attempting to replicate and extend these findings to another language, Russian. In(More)
Humans unconsciously track a wide array of distributional characteristics in their sensory environment. Recent research in spoken-language processing has demonstrated that the speech rate surrounding a target region within an utterance influences which words, and how many words, listeners hear later in that utterance. On the basis of hypotheses that(More)
Non-native speech differs from native speech in multiple ways. Previous research has described segmental and suprasegmental differences between native and non-native speech in terms of group averages. For example, average speaking rate for non-natives is slower than for natives. However, it is unknown whether non-native speech is also more variable than(More)
Due to extensive variability in the phonetic realizations of words, there may be few or no proximal spectro-temporal cues that identify a word's onset or even its presence. Dilley and Pitt (2010) showed that the rate of context speech, distal from a to-be-recognized word, can have a sizeable effect on whether or not a word is perceived. This investigation(More)
Prosodic structure is often perceived as exhibiting regularities in the patterning of tone sequences or stressed syllables. Recently, prosodic regularities in the distal (non-local) context have been shown to influence the perceived prosodic constituency of syllables. Three experiments tested the nature of distal prosodic patterns influencing perceptions of(More)
This study investigates the phonetic implementation of stress in American English compounds by measuring the interaction of stress cues with different intonation patterns. Participants in an experiment produced compounds and phrases such as greenhouse and green house in different prosodic positions and sentence types to elicit the contrast in a variety of(More)
During lexical access, listeners use both signal-based and knowledge-based cues, and information from the linguistic context can affect the perception of acoustic speech information. Recent findings suggest that the various cues used in lexical access are implemented with flexibility and may be affected by information from the larger speech context. We(More)
We assessed reliability and validity of three physical activity (PA) measures during pregnancy and postpartum: SenseWear Armband (SA; kcal/kg/hr), Omron pedometer (PED; steps/day/hr), and Pregnancy Physical Activity Questionnaire (PPAQ; MET.hr/ wk). Participants (n = 20) wore SA and PED in freeliving environments for two weeks at 20 weeks gestation, 32(More)
Neil Armstrong insisted that his quote upon landing on the moon was misheard, and that he had said one small step for a man, instead of one small step for man. What he said is unclear in part because function words like a can be reduced and spectrally indistinguishable from the preceding context. Therefore, their presence can be ambiguous, and they may(More)