Stephen Charles Van Hedger

Dr. Stephen Charles Van Hedger

Psychology, Huron University College, London, Ontario, Canada
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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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26 October 2018 in Psychonomic Bulletin & Review
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Stephen Charles Van HedgerStephen Charles Van Hedger
Stephen Charles Van Hedger
HNHoward C. Nusbaum
Howard C. Nusbaum
LCLuke Clohisy
Luke Clohisy
SJSusanne M. Jaeggi
Susanne M. Jaeggi
MBMartin Buschkuehl
Martin Buschkuehl
MBMarc G. Berman
Marc G. Berman

5 May 2019 in Cognitive Science
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Stephen Charles Van HedgerStephen Charles Van Hedger
Stephen Charles Van Hedger
HNHoward C. Nusbaum
Howard C. Nusbaum
SHShannon L. M. Heald
Shannon L. M. Heald
AHAlex Huang
Alex Huang
HKHiroki P. Kotabe
Hiroki P. Kotabe
MBMarc G. Berman
Marc G. Berman
People across the world seek out beautiful sounds in nature, such as a babbling brook or a nightingale song, for positive human experiences. However, it is unclear whether this positive aesthetic response is driven by a preference for the perceptual features typical of nature sounds versus a higher‐order association of nature with beauty. To test these hypotheses, participants provided aesthetic judgments for nature and urban soundscapes that varied on ease of recognition. Results demonstrated that the aesthetic preference for nature soundscapes was eliminated for the sounds hardest to recognize, and moreover the relationship between aesthetic ratings and several measured acoustic features significantly changed as a function of recognition. In a follow‐up experiment, requiring participants to classify these difficult‐to‐identify sounds into nature or urban categories resulted in a robust preference for nature sounds and a relationship between aesthetic ratings and our measured acoustic features that was more typical of easy‐to‐identify sounds. This pattern of results was replicated with computer‐generated artificial noises, which acoustically shared properties with the nature and urban soundscapes but by definition did not come from these environments. Taken together, these results support the conclusion that the recognition of a sound as either natural or urban dynamically organizes the relationship between aesthetic preference and perceptual features and that these preferences are not inherent to the acoustic features. Implications for nature's role in cognitive and affective restoration are discussed.

24 September 2019 in PLOS ONE
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Stephen Charles Van HedgerStephen Charles Van Hedger
Stephen Charles Van Hedger
SHShannon L M Heald
Shannon L M Heald
HNHoward Charles Nusbaum
Howard Charles Nusbaum
Absolute pitch (AP), the rare ability to name any musical note without the aid of a reference note, is thought to depend on an early critical period of development. Although recent research has shown that adults can improve AP performance in a single training session, the best learners still did not achieve note classification levels comparable to performance of a typical, “genuine” AP possessor. Here, we demonstrate that these “genuine” levels of AP performance can be achieved within eight weeks of training for at least some adults, with the best learner passing all measures of AP ability after training and retaining this knowledge for at least four months after training. Alternative explanations of these positive results, such as improving accuracy through adopting a slower, relative pitch strategy, are not supported based on joint analyses of response time and accuracy. The results also did not appear to be driven by extreme familiarity with a single instrument or octave range, as the post-training AP assessments used eight different timbres and spanned over seven octaves. Yet, it is also important to note that a majority of the participants only exhibited modest improvements in performance, suggesting that adult AP learning is difficult and that near-perfect levels of AP may only be achievable by subset of adults. Overall, these results demonstrate that explicit perceptual training in some adults can lead to AP performance that is behaviorally indistinguishable from AP that manifests within a critical period of development. Implications for theories of AP acquisition are discussed.

8 August 2025 in Nature Communications
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KWKelly L. Whiteford
Kelly L. Whiteford
LBLucas S. Baltzell
Lucas S. Baltzell
MCMatt Chiu
Matt Chiu
JCJohn K. Cooper
John K. Cooper
SFStefanie Faucher
Stefanie Faucher
AOAndrew J. Oxenham
Andrew J. Oxenham
Musical training has been reported to be associated with enhanced neural processing of sounds, as measured via the frequency following response (FFR), implying the potential for human subcortical neural plasticity. We conducted a large-scale multi-site preregistered study (n > 260) to replicate and extend the findings underpinning this important relationship. We failed to replicate any of the major findings selected for replication that were published previously in smaller studies. Musical training was not associated with enhanced neural encoding strength of a speech stimulus (/da/) in babble, whether measured via the spectral or temporal representations of the FFR. Similarly, the strength of neural tracking of a speech sound with a dynamic pitch trajectory was not related to either years of musical training or age of onset of musical training. Our findings provide no evidence for associations between early auditory neural responses and either musical training or musical ability.

23 May 2017 in Frontiers in Psychology
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SHShannon L. M. Heald
Shannon L. M. Heald
Stephen Charles Van HedgerStephen Charles Van Hedger
Stephen Charles Van Hedger
HNHoward C. Nusbaum
Howard C. Nusbaum
In our auditory environment, we rarely experience the exact acoustic waveform twice. This is especially true for communicative signals that have meaning for listeners. In speech and music, the acoustic signal changes as a function of the talker (or instrument), speaking (or playing) rate, and room acoustics, to name a few factors. Yet, despite this acoustic variability, we are able to recognize a sentence or melody as the same across various kinds of acoustic inputs and determine meaning based on listening goals, expectations, context, and experience. The recognition process relates acoustic signals to prior experience despite variability in signal-relevant and signal-irrelevant acoustic properties, some of which could be considered as “noise” in service of a recognition goal. However, some acoustic variability, if systematic, is lawful and can be exploited by listeners to aid in recognition. Perceivable changes in systematic variability can herald a need for listeners to reorganize perception and reorient their attention to more immediately signal-relevant cues. This view is not incorporated currently in many extant theories of auditory perception, which traditionally reduce psychological or neural representations of perceptual objects and the processes that act on them to static entities. While this reduction is likely done for the sake of empirical tractability, such a reduction may seriously distort the perceptual process to be modeled. We argue that perceptual representations, as well as the processes underlying perception, are dynamically determined by an interaction between the uncertainty of the auditory signal and constraints of context. This suggests that the process of auditory recognition is highly context-dependent in that the identity of a given auditory object may be intrinsically tied to its preceding context. To argue for the flexible neural and psychological updating of sound-to-meaning mappings across speech and music, we draw upon examples of perceptual categories that are thought to be highly stable. This framework suggests that the process of auditory recognition cannot be divorced from the short-term context in which an auditory object is presented. Implications for auditory category acquisition and extant models of auditory perception, both cognitive and neural, are discussed.

1 November 2018 in Acta Psychologica
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Stephen Charles Van HedgerStephen Charles Van Hedger
Stephen Charles Van Hedger
HNHoward C. Nusbaum
Howard C. Nusbaum