Assessing the Chaotic Nature of Neural Networks
... The code is written to be quite generic, and therefore the results presented here should be taken as an initial proof of concept. In the coming months I aim to study the effect that synaptic weights and delays have on the chaotic nature of the system. Specifically, in trying to address the original ...
... The code is written to be quite generic, and therefore the results presented here should be taken as an initial proof of concept. In the coming months I aim to study the effect that synaptic weights and delays have on the chaotic nature of the system. Specifically, in trying to address the original ...
Recovery of consciousness after brain injury: a
... evolving cognitive recovery can be strongly dissociated from motor recovery in some individuals, resulting in underestimation of cognitive capacities. Common mechanisms of cerebral dysfunction that arise at the neuronal population level may explain slow functional recoveries from severe brain injuri ...
... evolving cognitive recovery can be strongly dissociated from motor recovery in some individuals, resulting in underestimation of cognitive capacities. Common mechanisms of cerebral dysfunction that arise at the neuronal population level may explain slow functional recoveries from severe brain injuri ...
Top-Down Versus Bottom-Up Control of Attention in the Prefrontal
... top-down attention, whereas parietal neurons signaled it earlier during bottom-up attention. Synchrony between frontal and parietal areas was stronger in lower frequencies during top-down attention and in higher frequencies during bottom-up attention. This result indicates that top-down and bottom-u ...
... top-down attention, whereas parietal neurons signaled it earlier during bottom-up attention. Synchrony between frontal and parietal areas was stronger in lower frequencies during top-down attention and in higher frequencies during bottom-up attention. This result indicates that top-down and bottom-u ...
Potential Utility of Optogenetics in the Study of
... chronic stress. While the validity of all such models must be evaluated with caution and skepticism (60), there are several rodent models that demonstrate some etiologic and face validity, as well as neurobiological abnormalities that are validated in postmortem tissue from depressed humans (61,62). ...
... chronic stress. While the validity of all such models must be evaluated with caution and skepticism (60), there are several rodent models that demonstrate some etiologic and face validity, as well as neurobiological abnormalities that are validated in postmortem tissue from depressed humans (61,62). ...
Top-Down Versus Bottom-Up Control
... top-down attention, whereas parietal neurons signaled it earlier during bottom-up attention. Synchrony between frontal and parietal areas was stronger in lower frequencies during top-down attention and in higher frequencies during bottom-up attention. This result indicates that top-down and bottom-u ...
... top-down attention, whereas parietal neurons signaled it earlier during bottom-up attention. Synchrony between frontal and parietal areas was stronger in lower frequencies during top-down attention and in higher frequencies during bottom-up attention. This result indicates that top-down and bottom-u ...
Slide 1
... Pons • A bridge between higher and lower brain centers Medulla oblongata • Contains autonomic centers for heart rate and digestive activities • Relays sensory information to thalamus ...
... Pons • A bridge between higher and lower brain centers Medulla oblongata • Contains autonomic centers for heart rate and digestive activities • Relays sensory information to thalamus ...
Letter to Teachers
... incorporates the original artwork and slogan of a student who probably has much in common with the young people in your own classroom: Ania Lisa Etienne, a 13-year-old eighth-grader from Brooklyn, New York. Ania submitted the winning poster design to our “Heads Up” national poster contest last year. ...
... incorporates the original artwork and slogan of a student who probably has much in common with the young people in your own classroom: Ania Lisa Etienne, a 13-year-old eighth-grader from Brooklyn, New York. Ania submitted the winning poster design to our “Heads Up” national poster contest last year. ...
Chapter 21: Attention - Biology Courses Server
... Concluding Remarks • Studies of attention point to flexibility of the human brain • More mental energy to one location – Enhanced sensitivity & reaction time ...
... Concluding Remarks • Studies of attention point to flexibility of the human brain • More mental energy to one location – Enhanced sensitivity & reaction time ...
criteria of artificial neural network in reconition of pattern and image
... The recognition problem here is being posed as a classification or categorization task, where the classes are either defined by the system designer (in supervised classification) or are learned based on the similarity of patterns (in unsupervised classification).These applications include data minin ...
... The recognition problem here is being posed as a classification or categorization task, where the classes are either defined by the system designer (in supervised classification) or are learned based on the similarity of patterns (in unsupervised classification).These applications include data minin ...
Modeling Neural Mechanisms of Cognitive-Affective Interaction Abninder Litt () Chris Eliasmith ()
... A key advantage of opponent systems for positive and negative reward prediction error is that we can distinctly calibrate outputs from these systems to other brain areas. Because prediction error is in effect a measurement of surprise, we hypothesize that one target of such outputs is the amygdala, ...
... A key advantage of opponent systems for positive and negative reward prediction error is that we can distinctly calibrate outputs from these systems to other brain areas. Because prediction error is in effect a measurement of surprise, we hypothesize that one target of such outputs is the amygdala, ...
Music, biological evolution, and the brain.
... any special instruction (Bigand and Poulin-Charronatt, 2006). These facts make the claim that music is a human invention seem odd. Yet other theories view ancient and universal human communication systems as inventions. For example, Tomasello (2008) has proposed that language originated as an invent ...
... any special instruction (Bigand and Poulin-Charronatt, 2006). These facts make the claim that music is a human invention seem odd. Yet other theories view ancient and universal human communication systems as inventions. For example, Tomasello (2008) has proposed that language originated as an invent ...
Cortical Algorithms for Perceptual Grouping
... elements depends on the context of the scene provided by other elements located at nearby or remote locations. Figure 2B illustrates the role of context through the Gestalt law of connectedness. On the left hand side, the two red dots are positioned on the same object, but on the right hand side, th ...
... elements depends on the context of the scene provided by other elements located at nearby or remote locations. Figure 2B illustrates the role of context through the Gestalt law of connectedness. On the left hand side, the two red dots are positioned on the same object, but on the right hand side, th ...
Functional Classification
... Folate is a water-soluble B vitamin (B9) that occurs naturally in foods such as beef liver, leafy green vegetables, oranges, and legumes, whereas folic acid is the synthetic form of folate that is found in supplements and added to fortified foods . The bioavailability of folic acid from supplement ...
... Folate is a water-soluble B vitamin (B9) that occurs naturally in foods such as beef liver, leafy green vegetables, oranges, and legumes, whereas folic acid is the synthetic form of folate that is found in supplements and added to fortified foods . The bioavailability of folic acid from supplement ...
exercise - Anatomy and Physiology
... Left eye: lateral rectus (and on occasion the superior or inferior oblique) Dissection: The Cow (Sheep) Eye (p. 364) 6. The optic disc Activity 4: Predicting the Effects of Visual Pathway Lesions (pp. 364–365) A lesion in the right optic nerve affects medial and lateral vision of the right eye. (The ...
... Left eye: lateral rectus (and on occasion the superior or inferior oblique) Dissection: The Cow (Sheep) Eye (p. 364) 6. The optic disc Activity 4: Predicting the Effects of Visual Pathway Lesions (pp. 364–365) A lesion in the right optic nerve affects medial and lateral vision of the right eye. (The ...
The evolution of brains from early mammals to humans
... The large size and complex organization of the human brain makes it unique among primate brains. In particular, the neocortex constitutes about 80% of the brain, and this cortex is subdivided into a large number of functionally specialized regions, the cortical areas. Such a brain mediates accomplis ...
... The large size and complex organization of the human brain makes it unique among primate brains. In particular, the neocortex constitutes about 80% of the brain, and this cortex is subdivided into a large number of functionally specialized regions, the cortical areas. Such a brain mediates accomplis ...
Neural tube formation in the chick embryo - CSE IITK
... http://www.ibdm.univ-mrs.fr/equipe/axonguidance-in-the-mammalian-brain/ ...
... http://www.ibdm.univ-mrs.fr/equipe/axonguidance-in-the-mammalian-brain/ ...
Homeostatic plasticity mechanisms in mouse V1
... between seizure and coma is a cause for celebration, but the processes that maintain it in the face of Hebbian plasticity mechanisms that cause strong inputs to each neuron to grow ever stronger are still obscure. The maintenance of a steady average level of activity, averaged over long times, is re ...
... between seizure and coma is a cause for celebration, but the processes that maintain it in the face of Hebbian plasticity mechanisms that cause strong inputs to each neuron to grow ever stronger are still obscure. The maintenance of a steady average level of activity, averaged over long times, is re ...
Chaper 1. A Brief History of Cognitive Neuroscience
... Behaviorism: ‘Learning can be controlled by stimulus and response.’ Watson: “(can) turn any baby into anything.” Gestalt psychology: showed some human behaviors exist only as a function of built-in properties of the brain, not learned. Cognitivism: From 1950s, psychologists began to think in terms o ...
... Behaviorism: ‘Learning can be controlled by stimulus and response.’ Watson: “(can) turn any baby into anything.” Gestalt psychology: showed some human behaviors exist only as a function of built-in properties of the brain, not learned. Cognitivism: From 1950s, psychologists began to think in terms o ...
PROJECT FIRST STEP®
... involved in memory, attention, and spatial perception. Amazingly, the part of the brain that processes movement is the same part of the brain that’s processing learning. ...
... involved in memory, attention, and spatial perception. Amazingly, the part of the brain that processes movement is the same part of the brain that’s processing learning. ...
Pain
... as a part of the treatment. Emotional symptoms and pain might have a common pathophysiological background - brain areas involved in both emotional reactions and pain processing are damaged. Structural changes in these areas are likely to be a consequence of insufficient neurotrophic effects (BDN ...
... as a part of the treatment. Emotional symptoms and pain might have a common pathophysiological background - brain areas involved in both emotional reactions and pain processing are damaged. Structural changes in these areas are likely to be a consequence of insufficient neurotrophic effects (BDN ...
Visual Fields
... Visual fields are an important test of the visual system. They allow us to determine the health of the ocular system including the eye, visual pathways and visual cortex. We will explore visual fields as an important tool for eye care practitioners in assessing the health of the visual system. We wi ...
... Visual fields are an important test of the visual system. They allow us to determine the health of the ocular system including the eye, visual pathways and visual cortex. We will explore visual fields as an important tool for eye care practitioners in assessing the health of the visual system. We wi ...
Significant Mirrorings in the Process of Teaching and Learning
... knowledge, attributing it to the presence of a neural mechanism of mirroring that involves the motor area of the brain were presented. The mirroring mechanism, mapping our intentional relations with things and others, would acquire a fundamental role in our understanding of the world and in the way ...
... knowledge, attributing it to the presence of a neural mechanism of mirroring that involves the motor area of the brain were presented. The mirroring mechanism, mapping our intentional relations with things and others, would acquire a fundamental role in our understanding of the world and in the way ...
McGovern Institute for Brain Research
... McGovern and Lore Harp McGovern, who are committed to improving human welfare, communication, and understanding through their support for neuroscience research. New Faculty Appointments In June 2010, Guoping Feng joined the McGovern Institute and Department of Brain and Cognitive Sciences, where he ...
... McGovern and Lore Harp McGovern, who are committed to improving human welfare, communication, and understanding through their support for neuroscience research. New Faculty Appointments In June 2010, Guoping Feng joined the McGovern Institute and Department of Brain and Cognitive Sciences, where he ...
Joint maps for orientation, eye, and direction preference in a self
... orientation, as found in tree shrew [4]. We will also validate the model maps against other experimental results from specific species and study how the orientation, direction preference, and lateral connectivity interact with other stimulus dimensions, such as spatial frequency. The preferences for ...
... orientation, as found in tree shrew [4]. We will also validate the model maps against other experimental results from specific species and study how the orientation, direction preference, and lateral connectivity interact with other stimulus dimensions, such as spatial frequency. The preferences for ...
the brain`s concepts: the role of the sensory
... theory, and domain-specific theory (see Martin & Caramazza, 2003; Simmons & Barsalou, 2003). These theories differ along many dimensions, the principal one being the extent to which conceptual knowledge is structured—and henceforth selectively affected by localised brain damage, by property or by ca ...
... theory, and domain-specific theory (see Martin & Caramazza, 2003; Simmons & Barsalou, 2003). These theories differ along many dimensions, the principal one being the extent to which conceptual knowledge is structured—and henceforth selectively affected by localised brain damage, by property or by ca ...
Neuroesthetics
Neuroesthetics (or neuroaesthetics) is a relatively recent sub-discipline of empirical aesthetics. Empirical aesthetics takes a scientific approach to the study of aesthetic perceptions of art and music. Neuroesthetics received its formal definition in 2002 as the scientific study of the neural bases for the contemplation and creation of a work of art. Neuroesthetics uses neuroscience to explain and understand the aesthetic experiences at the neurological level. The topic attracts scholars from many disciplines including neuroscientists, art historians, artists, and psychologists.