Aravind Parthasarathy

Increased listening effort and cochlear neural degeneration underlie speech-in-noise deficits in normal-hearing middle-aged adults Cochlear neural degeneration in middle-aged adults with normal-hearing thresholds is associated with increased listening effort and behavioral deficits in challenging acoustic environments.

Our latest article is now published as VOR in @elife.bsky.social . We examine contributions of cochlear neural degeneration and pupil-indexed listening effort on speech perception in noise - elifesciences.org/articles/102.... This is a cross-species study and a labor of love from many lab trainees.

Our article is now a part of a collection @natureportfolio.nature.com - www.nature.com/collections/.... Seems to be a cool set of papers. Looking forward to reading.

Reduced neural distinctiveness of speech representations in the middle-aged brain Abstract. Speech perception can decline in middle age even when hearing thresholds remain normal, and the underlying neurobiological mechanisms are not well understood. In line with the age-related ne...

Excited to share our latest work, out now @jneurolang.bsky.social . We find "fuzzier" representations of phonemes in middle-aged adults despite normal hearing, driven in part by peripheral neural coding deficits. In collaboration with @soundbrainlab.bsky.social

direct.mit.edu/nol/article/...

Individual differences elucidate the perceptual benefits associated with robust temporal fine-structure processing | PNAS The auditory system is unique among sensory systems in its ability to phase lock to and precisely follow very fast cycle-by-cycle fluctuations in t...

✨Thrilled to kick off 2025 by sharing our new paper, led by @abmongol.bsky.social, on how the auditory system’s encoding of precise timing cues (temporal fine structure) could benefit our day-to-day listening: www.pnas.org/eprint/IFCPF...

Sensory representations and pupil-indexed listening effort provide complementary contributions to multi-talker speech intelligibility - Scientific Reports Scientific Reports - Sensory representations and pupil-indexed listening effort provide complementary contributions to multi-talker speech intelligibility

Excited to share our newest article , now in Scientific Reports @natureportfolio.bsky.social . Here we look at interactions between neural coding of temporal cues and pupil-indexed listening effort, and their combined effects on speech in noise intelligibility. - www.nature.com/articles/s41...

Impact of reduced spectral resolution on temporal-coherence–based source segregation Hearing-impaired listeners struggle to understand speech in noise, even when using cochlear implants (CIs) or hearing aids. Successful listening in noisy enviro

Excited to share our new JASA
@asa-news.bsky.social paper with @barbsc.bsky.social: "Impact of reduced spectral resolution on temporal-coherence–based source segregation" doi.org/10.1121/10.0...

Cochlear Synaptopathy: Unravelling hidden hearing loss Damage to the synapses connecting hair cells to the auditory nerve leads to undetected hearing impairments.

Our reviewed preprint at eLife got picked up for an article in eLife Magazine -
elifesciences.org/articles/104...
@PittCSD @PittSHRS @PittHealthSci @eLife #hiddenhearingloss @elife.bsky.social @soundbrainlab.bsky.social

Super excited to share the first preprint from my lab, looking at auditory cortical necessity and categorical learning. This one has been cooking for a while and has really set the stage for several other ongoing projects in the lab (stay tuned)! www.biorxiv.org/content/10.1...

in collaboration with Satya Parida and Ed Bartlett. With support from an HRRP grant from the @deptofdefense.bsky.social . Out now in Comms Bio @natureportfolio.bsky.social .

The dAM EFRs offer a 5x time improvement and 30x spectrotemporal improvement over using discrete AM tokens. We can get robust high-SNR responses across four species tested (including humans). Data and code available for research purposes. feedback welcome!

Rapid and objective assessment of auditory temporal processing using dynamic amplitude-modulated stimuli Communications Biology - Combining dynamic amplitude modulated stimuli with spectrally specific analyses yield rapid and robust diagnostic metrics for neural assessment of auditory temporal...

Latest from our lab-we developed and validated a new EEG-based measure to assess neural representation of temporal envelope cues from the auditory pathway - the dynamic amplitude modulated envelope following response (dAM EFRs) - rdcu.be/d0mTl
@PittCSD @PittSHRS