Spatial navigation relies on extracting environmental information to determine where to go. To support navigation behavior, navigational aids, such as maps, compasses, or global positioning systems (GPSs), offer access to easily extractible information, but do these aids enhance spatial memory? Here, we propose the hypothesis that navigation aids…

We compare two frameworks for the segmentation of words in child-directed speech, PHOCUS and MULTICUE. PHOCUS is driven by lexical recognition, whereas MULTICUE combines sub-lexical properties to make boundary decisions, representing differing views of speech processing. We replicate these frameworks, perform novel benchmarking and confirm that…

Learning the meaning of a verb is challenging because learners need to resolve two types of ambiguity: (1) word-referent mapping--finding the correct referent event of a verb, and (2) word-meaning mapping--inferring the correct meaning of the verb from the referent event (e.g., whether the meaning of an action word is TURNING or TWISTING). The…

Enabling smartphones to be foldable provides an effective approach to achieving both portability and large screens. Notably, switches between closed and open states in using foldable smartphones are accompanied by icon remapping, which can decrease smartphone usability if it fails to match usage expectations. This study conducted two experiments…

How can syntactic and learnability analyses inform each other, and thus deepen our understanding of syntax and its acquisition? This dissertation illuminates this question through three case studies in Korean syntax. I examine cases in which two structures that display distinct syntactic properties share extremely similar surface forms, thus…

Noise is a common impedance to easy and accurate speech understanding. In the presence of noise, speech processing mechanisms proceed with partial or ambiguous inputs, and listeners will engage additional cognitive resources to make sense of what they hear. The extent to which this is situation is affected by diminished exposure to a language is…

Accurately judging students' comprehension is a key professional competence for teachers. It is crucial for adapting instruction to students' needs and thereby promoting student learning. According to the cue-utilization framework, the accuracy of teachers' judgments depends on how predictive (or diagnostic) the information (or cues) that teachers…

Irrelevant salient distractors can trigger early quitting in visual search, causing observers to miss targets they might otherwise find. Here, we asked whether task-relevant salient cues can produce a similar early quitting effect on the subset of trials where those cues fail to highlight the target. We presented participants with a difficult…

Projecting confidence during conversation or presentation is a critical skill. To effectively display confidence, speakers must employ a blend of verbal and non-verbal signals. A predictive model that leverages rich multimodal cues to measure a speaker's confidence must also mitigate biases that develop through data labelling practices, inherent…

Children make use of various information in linguistic input to learn verbs, including syntactic distribution and semantic features. Within the intransitive verb class, unaccusative and unergative verbs differ in distribution with respect to word order as well as in semantic features such as telicity. Both the distributional and semantic…

Meaningful gestures enhance degraded speech comprehension in neurotypical adults, but it is unknown whether this is the case for neurodivergent populations, such as autistic individuals. Previous research demonstrated atypical multisensory and speech-gesture integration in autistic individuals, suggesting that integrating speech and gestures may…

We investigated the role of distinct inhibitory processes as 4- to 6-year-olds from the Northeastern United States (N = 48, M[subscript age] = 68.27 months, 22 boys, 26 girls; 63% White, 6% Black, 4% Asian, 2% Hispanic, 8% more than one race, with 17% not reporting) and adults evaluated accurate or deceptive information from human or non-human…

There are individual differences in how people respond to emotionally ambiguous cues (i.e., valence bias), which have important consequences for mental health, development, and social functioning, yet how these differences develop in childhood and adolescence is unknown. Extensive literature shows that children's cognitive biases, including…

Purpose: This study considered the impact of spectral and temporal smearing on vowel and consonant discrimination in school-age children and adults with normal hearing (NH). The overall purpose of this work was to test the hypothesis that degraded spectral cues preferentially impact vowel discrimination, while reduced access to temporal cues…

Purpose: Many children with developmental language disorder (DLD) demonstrate impaired executive function skills, including shifting. However, language demands in shifting tasks make it difficult to accurately assess shifting ability. Combining behavioral measures (accuracy, reaction time) with event-related potentials (ERPs) can help dissociate…