One of the most difficult category learning problems for humans is learning nonnative speech categories. While feedback-based category training can enhance speech learning, the mechanisms underlying these benefits are unclear. In this functional magnetic resonance imaging study, we investigated neural and computational mechanisms underlying feedback-dependent speech category learning in adults....

Dual-system models of visual category learning posit the existence of an explicit, hypothesis-testing reflective system, as well as an implicit, procedural-based reflexive system. The reflective and reflexive learning systems are competitive and neurally dissociable. Relatively little is known about the role of these domain-general learning systems in speech category learning. Given the multidi...

In an abstract category with suitable notions of subobject, closure and point, we discuss the separation axioms T0 and T1. Each of the arising subcategories is reflective. We give an iterative construction of the reflectors and present characteristic examples.

Introduction: The phenomenon of knowledge explosion has led teachers to feel the necessity of training students so that they become reflective thinkers. This issue is more important for nursing students who are responsible for providing care for patients.This study is a part of another study arming at exploration of Nursing Students’ views on reflection on practice. Methods. 20 senior nursing...

introduction: the phenomenon of knowledge explosion has led teachers to feel the necessity of training students so that they become reflective thinkers. this issue is more important for nursing students who are responsible for providing care for patients.this study is a part of another study arming at exploration of nursing students’ views on reflection on practice. methods. 20 senior nursing s...

The category HopfC of Hopf monoids in a symmetric monoidal category C, assumed to be locally finitely presentable as a category, is analyzed with respect to its categorical properties. Assuming that the functors “tensor squaring” and “tensor cubing” on C preserve directed colimits one has the following results: (1) If, in C, extremal epimorphisms are stable under tensor squaring, then HopfC is ...

Consider L being a continuous lattice, two functors from the category of convex spaces (denoted by CS) to the category of stratified L-convex spaces (denoted by SL-CS) are defined. The first functor enables us to prove that the category CS can be embedded in the category SL-CS as a reflective subcategory. The second functor enables us to prove that the category CS can be embedded in the categor...

Learning in the prototype distortion task is thought to involve perceptual learning in which category members experience an enhanced visual response (Ashby & Maddox, 2005). This response likely leads to more efficient processing, which in turn may result in a feeling of perceptual fluency for category members. We examined the perceptual fluency hypothesis by manipulating fluency independently f...

One of the most difficult category learning problems for humans is learning non-native speech categories. While feedback-based category training can benefit speech learning, the mechanisms underlying these benefits are unclear. In this fMRI study, we investigated neural and computational mechanisms underlying feedback-dependent speech category learning in adults. Positive feedback activated a l...

In this paper, we present an account of classical Logic Programming fixed-point semantics in terms of two standard categorical constructions in which the least Herbrand model is characterized by properties of universality. In particular, we show that, given a program P , the category of models of P is reflective in the category of interpretations for P . In addition, we show that the immediate ...