Studying the development and mechanisms of sensory perception is challenging in organisms with complex neuronal networks. The worm Caenorhabditis elegans possesses a simple neuronal network of 302 neurons that includes 60 ciliated sensory neurons (CSNs) for detecting external sensory input. C. elegans is thus an excellent model in which to study sensory neuron development, function, and behavio...

The prediction of the sensory outcomes of action is thought to be useful for distinguishing self- vs. externally generated sensations, correcting movements when sensory feedback is delayed, and learning predictive models for motor behavior. Here, we show that aspects of another fundamental function-perception-are enhanced when they entail the contribution of predicted sensory outcomes and that ...

The recent upsurge of interest in brain mechanisms of time perception is beginning to converge on some new starting points for investigating this long under studied aspect of our experience. In four experiments, we asked whether disruption of normal activity in human MT/V5 would interfere with temporal discrimination. Although clearly associated with both spatial and motion processing, MT/V5 ha...

The loss of sensation in skin lesions, and in a palm or sole that has been innervated by peripheral nerve trunks, is characteristic of leprosy. Detection of early nerve trunk involvement depends on demonstrating sensory loss. Newer developments in neurological sciences have made fresh interpretations of the observed sensory abnormalities in leprosy-affected persons possible. Some of these obser...

Impairments of sensory perception that occur during a period of critical care can seriously impact on health and nutritional status, activities of daily living, independence, quality of life and the possibility of recovery. It is emphasized from the outset that sensory losses in critically-ill patients may or may not be related to their current medical condition. The present paper provides an o...

We live in a multisensory world in which the senses play an important role in our perception of the world around us. If one sense is dulled the overall experience of a product changes, if you take away the appearance of a product, the consumer has to rely on taste, smell, touch and sound to experience the product. Appearance plays a massive role in consumer perception, if a product doesn’t look...

Paul Bach Y Rita [1] is the precursor of sensory substitutions. He started thirty years ago using visuotactile prostheses with the intent of satisfying blind people. These prostheses, called Tactile Vision Substitution Systems (TVSS), transform a sensory input from a given modality (vision) into another modality (touch). These new systems seemed to induce quasi-visual perceptions. One of the au...

Conditional Reactive Hierarchical Memory(CRHM) and its dynamic sensory gating system are proposed. CRHM has the hierarchical intelligent structure and has the efficient mechanisms of an acquisition stage, a retention stage and a retrieval stage for the memory process. The sensory gating system is designed for the adaptive perception in a retrieval stage. The sensory gate is tuned in to regulate...

As most sensory modalities, the visual system needs to deal with very fast changes in the environment. Instead of processing all sensory stimuli, the brain is able to construct a perceptual experience by combining selected sensory input with an ongoing internal activity. Thus, the study of visual perception needs to be approached by examining not only the physical properties of stimuli, but als...

Prior information about features of a stimulus is a strong modulator of perception. For instance, the prospect of more intense pain leads to an increased perception of pain, whereas the expectation of analgesia reduces pain, as shown in placebo analgesia and expectancy modulations during drug administration. This influence is commonly assumed to be rooted in altered sensory processing and expec...