Jordana R. Heller
Influences of meaning-related and probabilistic top-down processes on word recognition and fluent production in discourse contexts
Speech perception and production
The perception-production link in language learning and phonological change
*** Current Projects ***
Semantic Influences on Lexical-Phonological Activation during Sentence
Perception and Production
Dissertation research (Committee chair: Matt Goldrick
Past work has investigated lexical-phonological interaction during speech
production by examining effects of phonological neighborhood size on
reaction times and phonetic outcomes. The current work examines the extent to
which this interaction is constrained by syntactic and semantic predictability processes
during sentence perception and production.
Effects of Word Burstiness on Language Processing: Timing of Discourse-Thematic and Non-Thematic Words in Speech and
and David N.
(Learning Sciences, Psychology)
with support from Northwestern's Cognitive Science
Words are not randomly distributed through discourses; when a
topical word is mentioned, it tends to recur again soon, creating
"bursts" of topical word occurrence. This project examines the psycholinguistic
consequences of these discourse patterns: does the occurrence of a
topical word make its recurrence more predictable than the
recurrence of a less-topical word? How is this reflected in speech
production and reading time? What are the implications of this
reflection for theories of discourse comprehension and lexical access?
Influences of Lexical Properties and Lexical Context on Vowel Production
with Matt Goldrick
(BCS, University of Rochester)
During speech production, how does lexical interaction due to phonological neighborhood density interact
with lexical activation due to words nearby in the production context? What implications does this interaction have
for theories of lexical access and production planning? We are examining how word repetition and
neighbor mentions affect word production using both
acoustic and articulatory (ultrasound) experimental paradigms, as
well as spontaneous speech corpora.
Rapid Phonetic Convergence during Spoken Communication
(Psychology, Montclair State University)
We are investigating how social factors influence rapid convergence and
divergence of fine phonetic behavior within pairs of interlocutors
as speaker roles change over the course of conversational interaction.
jordana at u dot northwestern dot edu
last updated november seventh, two thousand and eleven