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Goal-direction and top-down control
Goal-direction and top-down control

Calculating Consequences - Human Reward and Decision Making lab
Calculating Consequences - Human Reward and Decision Making lab

... actions were, i.e., whether making a response caused them to receive To compute the objective contingency for each schedule as experimoney, using a scale from 0 to 100, where 0 indicated not causal and 100 enced by the subjects, we divided up each session into 10 s bins and indicated strongly causal ...
The human brain in numbers: a linearly scaled-up
The human brain in numbers: a linearly scaled-up

... exceed humans in body size, their brains amount to only about one-third of the size of the human brain. There are, however, several problems with the notion that the explanation for the superior cognitive abilities of the human species lies in its large EQ. For one, it is not obvious how largerthan- ...
Transfer RNA Specificity in Mammalian Tissues and Codon
Transfer RNA Specificity in Mammalian Tissues and Codon

... mention that it is very difficult to do unless you get reasonably pure tRNA from that peak. It is very difficult to pick up unless you further fractionate that last tRNA peak. Dr. Weinstein: I would like to make a comment on redundancy which I think your data indicate very nicely. As the brain goes ...
Word97 document (final draft)
Word97 document (final draft)

... field is to bridge the gap between children’s cognitive development (as assessed by behavioral studies) and the underlying development of the brain (Johnson, 1997). Although the age-old debate concerning the relative importance of nature and nurture in determining development rages on, it has recent ...
Brain Abnormalities in Murderers Indicated by
Brain Abnormalities in Murderers Indicated by

... anatomical subdivisions of each identified stereotactically (Buchsbaum et al 1989). This technique has been used by at least nine different PET groups, and a review of its advantages for facilitating intrasubject and intersubject differences may be found in Harris et al (1991). Absolute glucose valu ...
The Effects of Brain Drain on Haiti - DRUM
The Effects of Brain Drain on Haiti - DRUM

... Data from Docquier and Marfouk (2006) as well as U.S. Census data is used to conduct the research, of which there were over 200,000 observations included in the dataset. Occupations were divided and labeled as “high skilled, which incorporated individuals such as scientists, accountants, engineers, ...
Reprints
Reprints

... including various types of auditory (prominently rapid auditory processing), visual and motor deficits. It is likely that purely visual (but not ocular) problems can explain reading disability in a minority of dyslexic children, although the various theories of visual dyslexia still need to be furth ...
Age-related naturally occurring depression of
Age-related naturally occurring depression of

... confer further functional properties to the hippocampus than those due to mature granule cells. However, the effects of MAM on learning might depend on side effects of the drug, other than the depression of neurogenesis (Kempermann, 2002); therefore, a validation of the hypothesis that neurogenesis ...
PDF file
PDF file

... neurons centered at different retinal positions. However, other types of spatial invariance, such as size, style, and lighting, have to be learned object-by-object (no sub-part invariance sharing). Detection of objects using motion information belongs to built-in invariance based on temporal informa ...
Code-specific policy gradient rules for spiking neurons
Code-specific policy gradient rules for spiking neurons

... taken in the past were crucial to receiving a reward later and (b) the spatial credit assignment problem, i.e., the question, which neurons in a population were important for getting the reward and which ones were not. Here, we argue that an additional credit assignment problem arises in implementat ...
Altered Fronto-Striatal and Fronto-Cerebellar Circuits in Heroin
Altered Fronto-Striatal and Fronto-Cerebellar Circuits in Heroin

... drug-related cue induced change of regional cerebral blood flow and its correlation with craving score. And then by functional connectivity analysis they identified the neuronal circuitry involved in opiate craving. Liu et al. [20] analyzed the functional connectivity intensity of brain region in re ...
Do reports of consciousness during cardiac arrest hold
Do reports of consciousness during cardiac arrest hold

... of mind and consciousness is a product of the activity of neural networks or a consequence of electromagnetic processes within multiple areas of the brain as proposed by those in favour of the conventional theories detailed above, then one would expect there to be no activity of the mind and conscio ...
PDF
PDF

... channel opening decreases the input membrane resistance inducing “shunting inhibition” (see Andersen et al., 1980; Staley and Mody, 1992; Tang et al., 2011; Wright et al., 2011) that lowers the neuron’s firing probability. Therefore, a weakly depolarizing GABA may exert an inhibitory effect. In contr ...
Ivermectin excretion by isolated functionally intact brain endothelial
Ivermectin excretion by isolated functionally intact brain endothelial

... ®eld with several capillaries was selected and an epi¯uorescence image was aquired by averaging 4 ± 8 frames. In earlier studies using ¯uoresceine as reference compound, it had been shown, that ¯uorescence intensity and ¯uoresceine concentration had an approximately linear relationship (Miller & Pri ...
Deep Neural Networks for Anatomical Brain Segmentation
Deep Neural Networks for Anatomical Brain Segmentation

... all distances we increase the robustness of the resulting segmentation to noise, which is confirmed by our experimental results. Although these distances can be computed exactly using the training data set, for which all the centroids are known, they are unknown on new brains before any segmentation ...
Occlusion and brain function: mastication as a prevention of
Occlusion and brain function: mastication as a prevention of

... (GFAP). Such hypertrophy shows that glial cells are inflamed and degenerating. With reduced mastication, hypertrophied astrocytes are evident in the CA1 subfield (22, 23), implying that the reduced mastication increases the production of cytokines such as interleukins from the microglia to cause the ...
- Philsci
- Philsci

292(1):94-106
292(1):94-106

... and opens to form the brain ventricles (Lowery and Sive, 2005). During the second phase, which occurs between 24 and 36 hpf, along with the onset of heartbeat and circulation, both the amount of brain tissue and the volume of the brain ventricles increase substantially (Lowery and Sive, 2005; Muelle ...
Neural Darwinism
Neural Darwinism

... with developmental and evolutionary mechanisms. The theory of neuronal group selection was proposed to provide such aframework(Edelman, 1978). Its formulation was prompted by the need to reconcile two sets of observations that seemed inconsistent with the then prevalent notions of brain function: Fi ...
1 Brain Development, SIDS and Shaken Baby By Rhonda Crabbs
1 Brain Development, SIDS and Shaken Baby By Rhonda Crabbs

... brain cells. When synapse that were formed already, are no longer needed due to different experiences, they will break away. Though this process happens throughout our life, during the first year the child’s experiences set the foundation for ultimate connections to be formed (Zero to Three, 2000). ...
Functionalism Cannot Save the Classical View of Emotion (long
Functionalism Cannot Save the Classical View of Emotion (long

... 2. Definitions of emotion are stipulated, not discovered. In philosophy, a stipulation is definition by fiat. The history of science reveals that emotions are treated as discoveries, but in fact they are prescriptions, which leads to problems in scientific reasoning. Scientists began with a framewor ...
Summary
Summary

... that the return of oogenesis occurs in parallel to the progress of the reconstruction of the neurosecretory system of the regenerating brains. In our preliminary study we showed that the amputation of the first six head segments of D. veneta resulted in a temporary inhibition of cocoon production, w ...
Neuroscience: Exploring the Brain
Neuroscience: Exploring the Brain

The Area Postrema - Queen`s University
The Area Postrema - Queen`s University

... of the paraventricular nucleus (PVN) and dorsomedial nucleus of the hypothalamus (DMH) (van der Kooy and Koda 1983; Shapiro and Miselis 1985; see Fig. 3). Intriguingly information from the AP reaches the PVN through both monosynaptic and polysynaptic connections suggesting an integrative capacity wi ...
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Donald O. Hebb

Donald Olding Hebb FRS (July 22, 1904 – August 20, 1985) was a Canadian psychologist who was influential in the area of neuropsychology, where he sought to understand how the function of neurons contributed to psychological processes such as learning. He is best known for his theory of Hebbian learning, which he introduced in his classic 1949 work The Organization of Behavior. He has been described as the father of neuropsychology and neural networks. A Review of General Psychology survey, published in 2002, ranked Hebb as the 19th most cited psychologist of the 20th century. His views on learning described behavior and thought in terms of brain function, explaining cognitive processes in terms of connections between neuron assemblies.
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