Entrained cortical oscillations modulate perception via phase alignment

Evidence

Based on magnetoencephalography findings from a similar paradigm, Elhilali et al. ( 2009 ) proposed that the perceptual segregation of the modulated target from the distractors arises from temporal coherence of cortical activity patterns with the target. Whether tACS phase modulates this temporal coherence and therewith the segregability of the target remains to be shown; the preliminary data presented here indicate a trend toward a possible effect of 4-Hz tACS phase, as in experiment 1. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768 (#corroborates, via linked claim)

For the low-frequency stimulus, the listeners were required to detect a common upward frequency shift (Δf Hz) imposed on the individual components of the SSMC with the spectral envelope remaining unchanged (Moore and Sek 2009 ). It was assumed that the listeners based their judgments on pitch changes, reflecting the temporal fine structure encoded as the pattern of neural phase locking. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1043 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Perceptual segregation of target sounds may arise from temporal coherence with cortical oscillations — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768; Low-frequency pitch judgments reflect temporal fine structure via neural phase locking — Dijk, Pim van, Physiology, Psychoacoustics and…, 1043; Auditory detection of near-threshold sounds depends on the phase of ongoing brain oscillations. (+1 more)

Related

• Auditory detection of near-threshold sounds depends on the phase of ongoing brain oscillations. (similarity 0.91)
• Perceptual segregation of target sounds may arise from temporal coherence with cortical oscillations (similarity 0.87)
• Perceptual segregation of targets from distractors may depend on cortical temporal coherence (similarity 0.87)
• Acoustic and electric stimulus phase alignment is the key experimental variable (similarity 0.85)
• Complex listening relies on higher-level signal segregation beyond energetic masking (similarity 0.85)
• Transcranial alternating current phase modulates auditory click detection at the stimulation frequency (similarity 0.84)
• Stimulus-aligned brain oscillations can enhance perceived loudness of auditory input (similarity 0.84)
• Auditory perception performance varies with the phase of external rhythmic brain stimulation (similarity 0.84)
• Stimuli are individually calibrated to near-detection threshold to expose tACS phase effects (similarity 0.84)
• Low-frequency pitch judgments reflect temporal fine structure via neural phase locking (similarity 0.84)
• tACS phase significantly modulates click detection in normal-hearing listeners (similarity 0.83)
• Only three human studies have directly manipulated sound-brain entrainment perceptually (similarity 0.82)
• Phase locking fails above 5 kHz, so high-pitch perception relies on place theory (similarity 0.82)
• Electrical brain stimulation may enhance sounds temporally coherent with entrained oscillations (similarity 0.82)
• tACS boosts loudness of click trains temporally coherent with entrained oscillations (similarity 0.81)

Broader Connections

• Perceptual segregation of target sounds may arise from temporal coherence with cortical oscillations #corroborates (0.92) — Dijk, Pim van, Physiology, Psychoacoustics and…, 4768
• Auditory detection of near-threshold sounds depends on the phase of ongoing brain oscillations. #corroborates (0.90)
• Low-frequency pitch judgments reflect temporal fine structure via neural phase locking #corroborates (0.78) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1043