Distinctive semantic features in the healthy adult brain

Distinctive features of adult ocular dominance plasticity.

Sensory experience profoundly shapes neural circuitry of juvenile brain. Although the visual cortex of adult rodents retains a capacity for plasticity in response to monocular visual deprivation, the nature of this plasticity and the neural circuit changes that accompany it remain enigmatic. Here, we investigate differences between adult and juvenile ocular dominance plasticity using Fourier op...

The structure and connectivity of semantic memory in the healthy older adult brain

The anterior temporal lobes (ATLs) have been proposed to serve as a "hub" linking amodal or domain general information about the meaning of words, objects, facts and people distributed throughout the brain in semantic memory. The two primary sources of evidence supporting this proposal, viz. structural imaging studies in semantic dementia (SD) patients and functional imaging investigations, are...

The nature of distinctive features

Distinctive Features and the Liquids in Picard

The class of liquid consonants, which traditionally groups laterals and (most) rhotics (Catford 1977:237), has been called into question by recent research examining phonological features. The primary issue with defining the class based on a shared feature [liquid] is that unlike [nasal], for example, there is no agreed upon measurable phonetic correlate to the phonological feature. Dickey (199...

Distinctive and compact features

We consider the problem of extracting features for multi-class recognition problems. The features are required to make fine distinctions between similar classes, combined with tolerance for distortions and missing information. We define and compare two general approaches, both based on maximizing the delivered information for recognition: one divides the problem into multiple binary classificat...