Priming can render identical noise-vocoded speech stimuli intelligible or not

Evidence

The main idea underlying the experimental paradigm was to take advantage of the priming effect to create two conditions in which the same speech stimuli were unintelligible and intelligible (condition a and c respectively; the prime is referred to as condition b ). Such an experiment has the potential to disentangle acoustic and phonetic models and to allow us to address the non-overlapping cortical activity encoded by their TRFs. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4408

The behavioural results (Fig. 2a ) confirm that the experiment is creating these two conditions. Specifically, standard trials are detected with a higher confidence level (paired t -test, p = 3.1 × 10‑5 ) while no difference emerged for deviant trials (p = 0.41). The distribution of responses (Fig. 2b , top ) confirms that the participants were more confident in the detection of standard trials; therefore they could better understand the vocoded speech in the primed condition. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4407

Categorization

• DEFINE: Explains the priming paradigm for producing physically identical but perceptually different speech, useful for isolating phonetic processing.
• corroborated: 3 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4408; Dijk, Pim van, Physiology, Psychoacoustics and…, 4407