Lexical information drives perceptual learning of distorted speech: evidence from the comprehension of noise-vocoded sentences

Speech comprehension is resistant to acoustic distortion in the input, reflecting listeners' ability to adjust perceptual processes to match the speech input. For noise-vocoded sentences, a manipulation that removes spectral detail from speech, listeners' reporting improved from near 0% to 70% correct over 30 sentences (Experiment 1). Learning was enhanced if listeners heard distorted sentences while they knew the identity of the undistorted target (Experiments 2 and 3). Learning was absent when listeners were trained with nonword sentences (Experiments 4 and 5), although the meaning of the training sentences did not affect learning (Experiment 5). Perceptual learning of noise-vocoded speech depends on higher level information, consistent with top-down, lexically driven learning. Similar processes may facilitate comprehension of speech in an unfamiliar accent or following cochlear implantation.     

An exploratory investigation of coffee and lemon scents and odor identification

Fragrance sellers often provide coffee beans to their customers as a "nasal palate cleanser," to reduce the effects of olfactory adaptation and habituation. To test this idea, college students smelled three fragrances multiple times, rating odors each time. After completing nine trials, participants sniffed coffee beans, lemon slices, or plain air. Participants then indicated which of four presented fragrances had not been previously smelled; Coffee beans did not yield better performance than lemon slices or air.     

Human newborns match tongue protrusion of disembodied human and robotic mouths

No evidence had been provided so far of newborns’ capacity to give a matching response to 2D stimuli. We report evidence from 18 newborns who were presented with three types of stimuli on a 2D screen. The stimuli were video-recorded displays of tongue protrusion shown by: (a) a human face, (b) a human tongue from a disembodied mouth, and (c) an artificial tongue from a robotic mouth. Compared to a baseline condition, neonates increased significantly their tongue protrusion when seeing disembodied human and artificial tongue movements, but not when seeing a 2D full-face protruding tongue. This result was interpreted as revealing the exploration of top-heavy patterns of the 2D face that distracted infants’ attention from the tongue. Results also showed progressively more accurate matching (full tongue protrusion) throughout repeated exposure to each kind of stimulus. Such findings are not in line with the predictions of the innate releasing mechanism (IRM) model or of the oral exploration hypothesis. They support the active intermodal mapping (AIM) hypothesis that emphasizes not only the importance of repeated experience, as would the associative sequence learning (ASL) hypothesis, but also predicts a differential learning and progressive correction of the response adapted to each stimulus.     

Correction to: Think ahead before you regulate: A focus on future consequences predicts choices of and beliefs about strategies for the downregulation of negative emotions

Motivation and Emotion - The original version of this article unfortunately contained a mistake in the last paragraph of result section in Study 1.     

Think ahead before you regulate: A focus on future consequences predicts choices of and beliefs about strategies for the down-regulation of negative emotions

Considering future consequences predicts many self-regulatory behaviors. Moreover, emotion regulation choices often involve trade-offs between immediate hedonic benefits and future well-being and mental health. We propose that focusing on future consequences may also predict emotion regulation choices. We examined whether people who consider future consequences of their actions are more likely to choose adaptive strategies and less likely to choose maladaptive strategies (Study 1) and whether people believe that adaptive and maladaptive strategies have differential short- and long-term consequences (Study 2). In Study 1, consideration of future consequences was related to choosing more adaptive and fewer maladaptive strategies for regulating negative emotions. In Study 2, participants believed that adaptive strategies are more effective in the short-term than in the long-term and that maladaptive strategies are more effective in the long-term than in the short-term. Moreover, commonalities in favored strategies were observed across the two studies. Taken together, the findings suggest that trait future time focus plays a significant role in emotion regulation preferences and that people have some knowledge about the varied temporal consequences of different strategies.