![Orientation Preference Patterns in Mammalian Visual Cortex: A Wire](http://s1.studyres.com/store/data/005560643_1-021c65abfa5fd7ea986ee1c0c40152a6-300x300.png)
Orientation Preference Patterns in Mammalian Visual Cortex: A Wire
... ent at every point (Girman et al., 1999). This is despite the fact that each individual neuron is well tuned for orientation. The situation in rat V1 raises a question about the relation between the tuning of neuronal response and the tuning of the connection function. Although they are related, the ...
... ent at every point (Girman et al., 1999). This is despite the fact that each individual neuron is well tuned for orientation. The situation in rat V1 raises a question about the relation between the tuning of neuronal response and the tuning of the connection function. Although they are related, the ...
Brain Receptor Imaging - Society of Nuclear Medicine
... the pathologic process in Parkinson’s disease and, therefore, the assessment of disturbed dopamine synthesis is the main target for clinical studies (19). Postsynaptic receptors may also be involved in neurodegenerative disorders; they are functionally changed in the course of Parkinson’s disease an ...
... the pathologic process in Parkinson’s disease and, therefore, the assessment of disturbed dopamine synthesis is the main target for clinical studies (19). Postsynaptic receptors may also be involved in neurodegenerative disorders; they are functionally changed in the course of Parkinson’s disease an ...
The neuronal structure of the globus pallidus in the rabbit — Nissl
... the borders of GP has an elongated shape. The dendritic arbour is not homogeneous. The dendrites may be covered with spindle-shaped dendritic swellings, bead-like processes, not numerous spines or they may be smooth as well. The dendritic branches form thin, beaded dendritic processes, that arise fr ...
... the borders of GP has an elongated shape. The dendritic arbour is not homogeneous. The dendrites may be covered with spindle-shaped dendritic swellings, bead-like processes, not numerous spines or they may be smooth as well. The dendritic branches form thin, beaded dendritic processes, that arise fr ...
Cognitive neuroscience of self-regulation failure
... this newfound capacity to self-regulate can be used not only for comparatively banal tasks such as maintaining posture or using one’s non-dominant hand, but also for behaviors with important health consequences such as resisting the temptation to smoke. If self-regulatory capacity can be increased t ...
... this newfound capacity to self-regulate can be used not only for comparatively banal tasks such as maintaining posture or using one’s non-dominant hand, but also for behaviors with important health consequences such as resisting the temptation to smoke. If self-regulatory capacity can be increased t ...
Commentaries on Viewpoint: A role for the prefrontal cortex in
... a response” during cognitive tasks and more moderate exercise, it probably does not do so during peak sporting performance. For instance, crucial as PFC “task response selection” is for Stroop Task performance, it would be a liability when hitting a match winning serve at Wimbledon. Instead the PFC ...
... a response” during cognitive tasks and more moderate exercise, it probably does not do so during peak sporting performance. For instance, crucial as PFC “task response selection” is for Stroop Task performance, it would be a liability when hitting a match winning serve at Wimbledon. Instead the PFC ...
From format to function: Embodiment and the functional roles of
... emphasis). And Lakoff and Johnson (1999) write that an “embodied concept is a neural structure that is actually part of, or makes use of, the sensorimotor system of our brains.” (p. 20; our emphasis). In short, all argue that at least some conceptual representations are modal in virtue of their reli ...
... emphasis). And Lakoff and Johnson (1999) write that an “embodied concept is a neural structure that is actually part of, or makes use of, the sensorimotor system of our brains.” (p. 20; our emphasis). In short, all argue that at least some conceptual representations are modal in virtue of their reli ...
Conscious Modulation in Normal Sleep
... presented to both eyes and implicit versus explicit awareness of visual stimuli [e.g., by studying patients who exhibit `blind sight'] [5-7]. The strategy employed for to explore these functional stages like brain imaging are straightforward; scans obtained during normal conscious functioning are co ...
... presented to both eyes and implicit versus explicit awareness of visual stimuli [e.g., by studying patients who exhibit `blind sight'] [5-7]. The strategy employed for to explore these functional stages like brain imaging are straightforward; scans obtained during normal conscious functioning are co ...
Chapter_013
... • Consists of several structures that lie beneath the thalamus • Forms floor of the third ventricle and lower part of lateral walls • Prominent structures found in the hypothalamus ...
... • Consists of several structures that lie beneath the thalamus • Forms floor of the third ventricle and lower part of lateral walls • Prominent structures found in the hypothalamus ...
Surround suppression explained by long-range
... complex features across the visual field, and which is consistent with anatomical and physiological profiles of cortical excitation and inhibition. In this model, sparse local excitatory connections within columns, coupled with strong unspecific local inhibition and functionally-specific long-range ...
... complex features across the visual field, and which is consistent with anatomical and physiological profiles of cortical excitation and inhibition. In this model, sparse local excitatory connections within columns, coupled with strong unspecific local inhibition and functionally-specific long-range ...
Chapter_013
... • Consists of several structures that lie beneath the thalamus • Forms floor of the third ventricle and lower part of lateral walls • Prominent structures found in the hypothalamus ...
... • Consists of several structures that lie beneath the thalamus • Forms floor of the third ventricle and lower part of lateral walls • Prominent structures found in the hypothalamus ...
Circuits through prefrontal cortex, basal ganglia, and ventral anterior
... Bethesda, MD). Procedures were designed to minimize animal suffering and reduce their number. To inject tracers in the VA nucleus it was necessary to first obtain a map of the thalamus using magnetic resonance imaging (MRI). To mark the interaural line, hollow ear bars of the stereotaxic apparatus w ...
... Bethesda, MD). Procedures were designed to minimize animal suffering and reduce their number. To inject tracers in the VA nucleus it was necessary to first obtain a map of the thalamus using magnetic resonance imaging (MRI). To mark the interaural line, hollow ear bars of the stereotaxic apparatus w ...
The prefrontal cortex encompasses a large and heterogeneous set of
... formidable problem in constructing central databanks on the connections and functional attributes of areas obtained from different studies (Stephan et al., 2000). In this study we used an alternative approach to cortical mapping by investigating whether architectonic areas of the prefrontal cortex c ...
... formidable problem in constructing central databanks on the connections and functional attributes of areas obtained from different studies (Stephan et al., 2000). In this study we used an alternative approach to cortical mapping by investigating whether architectonic areas of the prefrontal cortex c ...
Institutionen för medicinsk teknik - IMT Master's Program Biomedical Engineering
... fMRI data, namely the lack of time resolution (despite having a very good spatial response). This method also allows for mapping the brain during sleep stages. Thus the scored EEG data can be used to epoch fMRI resting state data. Resting state fMRI data, obtained when the brain is not engaged in a ...
... fMRI data, namely the lack of time resolution (despite having a very good spatial response). This method also allows for mapping the brain during sleep stages. Thus the scored EEG data can be used to epoch fMRI resting state data. Resting state fMRI data, obtained when the brain is not engaged in a ...
Mirror neurons in monkey area F5 do not adapt to the observation of
... These studies have suggested that adaptation in IT may either depend on a decrease of synaptic efficacy of the afferents carrying visual information to temporal lobe neurons8,12 or it might be the result of improved predictions of experienced visual stimuli (that is, a top–down effect), leading to de ...
... These studies have suggested that adaptation in IT may either depend on a decrease of synaptic efficacy of the afferents carrying visual information to temporal lobe neurons8,12 or it might be the result of improved predictions of experienced visual stimuli (that is, a top–down effect), leading to de ...
a review with emphasis on the projections of specific thalamic nuclei
... * * The following definitions of the word ‘primary’ are offered in the hope that they will alleviate some of the confusion which has resulted from the various ways in which the word ‘primary’ has been applied to describe specific regions of the cerebral cortex. In the context of studies of cortical ...
... * * The following definitions of the word ‘primary’ are offered in the hope that they will alleviate some of the confusion which has resulted from the various ways in which the word ‘primary’ has been applied to describe specific regions of the cerebral cortex. In the context of studies of cortical ...
Deficits of brainstem and spinal cord functions after
... Feeding and respiration are vital functions for newborns and children. These complex motor functions originate from central pattern generator localized in the brainstem (8,12) which is vulnerable to HI (17). The respiratory center is located in an area within the brainstem called the pre-Bötzinger c ...
... Feeding and respiration are vital functions for newborns and children. These complex motor functions originate from central pattern generator localized in the brainstem (8,12) which is vulnerable to HI (17). The respiratory center is located in an area within the brainstem called the pre-Bötzinger c ...
The History of the EEG
... • Fast Fourier Transform seperates spontaneous EEG signal to component frequencies and amplitudes • Restriction: high frequency resolution demands long (in the range of seconds) analysis windows ...
... • Fast Fourier Transform seperates spontaneous EEG signal to component frequencies and amplitudes • Restriction: high frequency resolution demands long (in the range of seconds) analysis windows ...
Selective visual attention and perceptual coherence
... magnified as information is passed to later stages of processing. For example, one biologically plausible computational model suggests that a scalar estimation of bottom-up salience in V1 – independent of the feature dimension – can account for behavioral performance under a variety of psychophysica ...
... magnified as information is passed to later stages of processing. For example, one biologically plausible computational model suggests that a scalar estimation of bottom-up salience in V1 – independent of the feature dimension – can account for behavioral performance under a variety of psychophysica ...
PowerPoint 演示文稿 - Shandong University
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
nervous system part 6 EEG, walkfulness and sleep
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
EEG - pressthebar
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
... A synchronized burst of electrical activity that originates in the pons and like a wave it activates the lateral geniculate nucleus (first relay of visual information) and then the occipital lobe, specifically in the visual cortex (which receives and puts together the visual information that comes f ...
All-Optical Interrogation of Neural Circuits
... populations of neurons with millisecond precision, even on the level of single neurons. However, these two revolutions have proceeded more or less in parallel, and it has proven very difficult to combine readout and manipulation of the same cells, and thus achieve fully “all-optical” interrogation o ...
... populations of neurons with millisecond precision, even on the level of single neurons. However, these two revolutions have proceeded more or less in parallel, and it has proven very difficult to combine readout and manipulation of the same cells, and thus achieve fully “all-optical” interrogation o ...
Neuroimaging and ADHD: fMRI, PET, DTI Findings, and
... by pervasive and developmentally inappropriate levels of inattention, impulsivity, and hyperactivity. There is no conclusive cause of ADHD although a number of etiologic theories have been advanced. Research across neuroanatomical, neurochemical, and genetic disciplines collectively support a physio ...
... by pervasive and developmentally inappropriate levels of inattention, impulsivity, and hyperactivity. There is no conclusive cause of ADHD although a number of etiologic theories have been advanced. Research across neuroanatomical, neurochemical, and genetic disciplines collectively support a physio ...
T2 - Center for Neural Basis of Cognition
... Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building re ...
... Remapping occurs at early stages of the visual hierarchy. Corollary discharge has an impact far back into the system. Remapping implies widespread connectivity in which many neurons have rapid access to information well beyond the classical receptive field. Vision is an active process of building re ...
Connectome
![](https://commons.wikimedia.org/wiki/Special:FilePath/White_Matter_Connections_Obtained_with_MRI_Tractography.png?width=300)
A connectome is a comprehensive map of neural connections in the brain, and may be thought of as its ""wiring diagram"". More broadly, a connectome would include the mapping of all neural connections within an organism's nervous system.The production and study of connectomes, known as connectomics, may range in scale from a detailed map of the full set of neurons and synapses within part or all of the nervous system of an organism to a macro scale description of the functional and structural connectivity between all cortical areas and subcortical structures. The term ""connectome"" is used primarily in scientific efforts to capture, map, and understand the organization of neural interactions within the brain.Research has successfully constructed the full connectome of one animal: the roundworm C. elegans (White et al., 1986, Varshney et al., 2011). Partial connectomes of a mouse retina and mouse primary visual cortex have also been successfully constructed. Bock et al.'s complete 12TB data set is publicly available at Open Connectome Project.The ultimate goal of connectomics is to map the human brain. This effort is pursued by the Human Connectome Project, sponsored by the National Institutes of Health, whose focus is to build a network map of the human brain in healthy, living adults.