The ability to learn and retain novel information depends on a system of structures in the medial temporal lobe (MTL) including the hippocampus and the surrounding entorhinal, perirhinal, and parahippocampal cortices. Damage to these structures produces profound memory deficits; however, the unique contribution to memory of each of these…

The cAMP/PKA pathway plays a critical role in learning and memory systems in animals ranging from mice to "Drosophila" to "Aplysia." Studies of olfactory learning in "Drosophila" suggest that altered expression of either positive or negative regulators of the cAMP/PKA signaling pathway beyond a certain optimum range may be deleterious. Here we…

A view on music within the framework depicted in this article will show, first of all, that music is part of the semiotically organized connections between living creatures. Music is universally present in human culture, and if music is, as Francis Sparshott says, a system of its own, with elements such as intervals, keys, and scales that are…

There is strong converging evidence suggesting that developmental dyslexia stems from a phonological processing deficit. However, this hypothesis has been challenged by the widely admitted heterogeneity of the dyslexic population, and by several reports of dyslexic individuals with no apparent phonological deficit. In this paper, we discuss the…

This case report addresses assessment and treatment considerations for a patient suffering from posttraumatic stress disorder (PTSD) in the context of mild traumatic brain injury and ongoing pain. Management of this case is based on the application of evidence-based therapy, and of cognitive behaviour therapy, for PTSD reduction. Assessment and…

Brain-based teaching and learning focuses on how the brain learns best, and emerging brain research is a significant resource, but only if one knows how to use it as such. Teachers have the professional training and classroom experience to know first hand where there are problems in educational practices, but most teachers haven't been taught…

Stimuli designed to selectively elicit motion or color processing were used in a developmental event-related potential study with adults and children aged 6, 7 and 8. A positivity at posterior site INZ (P-INZ) was greater to motion stimuli only in adults. The P1 and N1 were larger to color stimuli in both adults and children, but earlier to motion…

In the present work, we developed a database of nonlinguistic sounds that mirror prosodic characteristics typical of language and thus carry affective information, but do not convey linguistic information. In a dichotic-listening task, we used these novel stimuli as a means of disambiguating the relative contributions of linguistic and affective…

This paper presents autoassociator neural networks. A first section reviews the architecture of these models, common learning rules, and presents sample simulations to illustrate their abilities. In a second section, the ability of these models to account for learning phenomena such as habituation is reviewed. The contribution of these networks to…

The human brain contains an estimated 100 billion neurons, and browsing the Web, one might be led to believe that there's a Web site for every one of those cells. It's no surprise that there are lots of Web sites concerning the nervous system. After all, the human brain is toward the top of nearly everyone's list of favorite organs and of…

The purpose of this article is to analyse the present state of the discussion and data regarding the brain drain in Mexico. From current data, recent trends show certain peculiarities in the national picture, pointing to an increase in the number of free movers, and a decrease in the number of young people who obtain Mexican government…

Laboratory demonstration, as well as biochemistry lecture, has been used to complement explanation of biochemical processes. The laboratory demonstration is very useful in teaching biochemistry to students who lack background in biology. The experimental model of fibrinolysis described here presents a complex biological reaction in simplified…

The return to drug seeking, even after prolonged periods of abstinence, is a defining feature of cocaine addiction. The neural circuitry underlying relapse has been identified in neuropharmacological studies of experimental animals, typically rats, and supported in brain imaging studies of human addicts. Although the nucleus accumbens (NAcc),…

The number of highly skilled Africans leaving their country of origin, many with PhDs, has reached disturbing proportions. Meanwhile, Africa spends billions per year to fill the capacity gaps that are created by the exodus of the highly skilled. In Africa, Ethiopia ranked first in terms of rate of loss of human capital. Many African governments…

As our understanding of learning focuses on the whole person rather than individual aspects of learning, so the process of learning is beginning to be studied from a wide variety of perspectives and disciplines. This handbook presents a comprehensive overview of the contemporary research into learning: it brings together a diverse range of…