Biological clock
... • The retinal cells synchronizing the SCN are neither rods nor cones eyeless mice: cannot use light to reset their clocks • mutant mice with intact retinas that lack rods and cones: can! • David Berson et al. discovered a new photoreceptor: a very specialized type of ganglion cell - light-sensitive, ...
... • The retinal cells synchronizing the SCN are neither rods nor cones eyeless mice: cannot use light to reset their clocks • mutant mice with intact retinas that lack rods and cones: can! • David Berson et al. discovered a new photoreceptor: a very specialized type of ganglion cell - light-sensitive, ...
nightmares without atonia as an early symptom of diffuse lewy
... nightmares with no atonia (NWNA) about 6 years prior to his first evaluation. One year before the first consult, the patient had an intestinal infection and he started to have visospatial disorder, some memory problems and attention deficits. During all course of the disease he had incapacity to fin ...
... nightmares with no atonia (NWNA) about 6 years prior to his first evaluation. One year before the first consult, the patient had an intestinal infection and he started to have visospatial disorder, some memory problems and attention deficits. During all course of the disease he had incapacity to fin ...
Document
... • Brodmann Area 8 is anterior of the premotor cortex. It facilitates eye movements and is involved in visual reflexes as well as pupil dilation and constriction. ...
... • Brodmann Area 8 is anterior of the premotor cortex. It facilitates eye movements and is involved in visual reflexes as well as pupil dilation and constriction. ...
Duration Sensitivity to Other Response Properties of the Rat
... et al. 2000). Duration-selective neurons have only been found at or above the level of the inferior colliculus (IC) or its homolog in any of the species studied, so this form of neural filtering seems to be an emergent property that results from circuitry operating within the midbrain. The IC is inn ...
... et al. 2000). Duration-selective neurons have only been found at or above the level of the inferior colliculus (IC) or its homolog in any of the species studied, so this form of neural filtering seems to be an emergent property that results from circuitry operating within the midbrain. The IC is inn ...
A Computational Model of the Amygdala Nuclei`s Role in - laral
... [2]. However, we still lack a comprehensive theory able to explain the full range of these empirical data. Trying to build detailed biologically plausible computational models is a necessary step to overcome this knowledge gap. The current most influential models on classical conditioning, those bas ...
... [2]. However, we still lack a comprehensive theory able to explain the full range of these empirical data. Trying to build detailed biologically plausible computational models is a necessary step to overcome this knowledge gap. The current most influential models on classical conditioning, those bas ...
Nat Methods 6:219-224 - University of British Columbia
... Fig. 3 online). In a mouse on which we performed both ICMS and LBM (Fig. 4), the positions and sizes of motor maps were generally in agreement. In this combined ICMS and LBM experiment we performed 26 penetrations to map the motor cortex, completing the ICMS map in approximately 1 h. In the same amo ...
... Fig. 3 online). In a mouse on which we performed both ICMS and LBM (Fig. 4), the positions and sizes of motor maps were generally in agreement. In this combined ICMS and LBM experiment we performed 26 penetrations to map the motor cortex, completing the ICMS map in approximately 1 h. In the same amo ...
State dependent activity in monkey visual cortex
... rhesus monkey can be greatly modulated depending on the behavioral significance of a visual stimulus. These findings suggest that signals arising from sources other than the retina may represent an important aspect of neuronal activity in visual cortex. Understanding the extent and nature of these e ...
... rhesus monkey can be greatly modulated depending on the behavioral significance of a visual stimulus. These findings suggest that signals arising from sources other than the retina may represent an important aspect of neuronal activity in visual cortex. Understanding the extent and nature of these e ...
An Optogenetic Approach to Understanding the Neural Circuits of Fear
... circuits responsible for producing fear responses. Projections from the LA to the central nucleus of the amygdala (CE), directly and indirectly (possibly through the basal nucleus of the amygdala (62,63) (but see also Herry et al. [64]), the prelimbic cortex (for review, see Sotres-Bayon and Quirk [ ...
... circuits responsible for producing fear responses. Projections from the LA to the central nucleus of the amygdala (CE), directly and indirectly (possibly through the basal nucleus of the amygdala (62,63) (but see also Herry et al. [64]), the prelimbic cortex (for review, see Sotres-Bayon and Quirk [ ...
MIrror neuRons based RObot Recognition - LIRA-Lab
... The biological motivation of this study is the discovery of the so-called mirror neurons in the primates’ premotor cortex. These neurons behave as a “motor resonant system”, activated both during execution of goal directed actions and during the observation of similar actions performed by others. On ...
... The biological motivation of this study is the discovery of the so-called mirror neurons in the primates’ premotor cortex. These neurons behave as a “motor resonant system”, activated both during execution of goal directed actions and during the observation of similar actions performed by others. On ...
Estimating efficiency a priori - Wellcome Trust Centre for
... cognitive/ physiological effects (e.g, the hemodynamic responses may be more variable in one context relative to another), (ii) can only be estimated by performing a statistical analysis, and (iii) is voxel-specific. In other words, the relative efficiency of response estimation can only be quantifi ...
... cognitive/ physiological effects (e.g, the hemodynamic responses may be more variable in one context relative to another), (ii) can only be estimated by performing a statistical analysis, and (iii) is voxel-specific. In other words, the relative efficiency of response estimation can only be quantifi ...
Mental Imagery in Spinal Cord Injury: A Systematic Review
... reorganization in stroke and other brain injured conditions. In contrast to the studies of MI done in stroke and other brain injured subjects, where cognitive functions are likely to be compromised, it would be interesting to know how MI presents in a spinal cord injured person because people with S ...
... reorganization in stroke and other brain injured conditions. In contrast to the studies of MI done in stroke and other brain injured subjects, where cognitive functions are likely to be compromised, it would be interesting to know how MI presents in a spinal cord injured person because people with S ...
Single nucleotide polymorphism in the neuroplastin locus
... effects in the left and right hemispheres indicate that these values are higher for the left hemisphere, suggesting that the languagedominant left cerebral cortex may be under stronger genetic control than the right cortex.8 Second, age-related differences in the heritability of cortical thickness i ...
... effects in the left and right hemispheres indicate that these values are higher for the left hemisphere, suggesting that the languagedominant left cerebral cortex may be under stronger genetic control than the right cortex.8 Second, age-related differences in the heritability of cortical thickness i ...
Tricas 2008
... microampullae found in exclusively freshwater species (e.g. freshwater stingrays and catfish). In addition, physiological studies on ampullary systems reveal that they are all low pass receptors and likely respond best to electric field stimuli that originate from external sources. Thus ampullae are i ...
... microampullae found in exclusively freshwater species (e.g. freshwater stingrays and catfish). In addition, physiological studies on ampullary systems reveal that they are all low pass receptors and likely respond best to electric field stimuli that originate from external sources. Thus ampullae are i ...
Cerebral Cortex July 2009;19:1539--1548 doi:10.1093/cercor/bhn191 Advance Access publication November 2, 2008
... use of these unfamiliar contextual cues was highly effective. On the basis of an informal posttest questionnaire, only 2 participants reported ever having been physically present within any one of these unfamiliar contexts. These 2 specific trials were excluded from analysis, ensuring that all unfami ...
... use of these unfamiliar contextual cues was highly effective. On the basis of an informal posttest questionnaire, only 2 participants reported ever having been physically present within any one of these unfamiliar contexts. These 2 specific trials were excluded from analysis, ensuring that all unfami ...
Neural Correlates for Perception of 3D Surface Orientation from
... even with novel orientations (tests 1 and 3) and patterns (tests 2 and 3) without training. Monkeys regarded texture and disparity gradients as equivalent depth cues, and they perceived a 3D surface orientation from texture gradient cues. We found that texture gradient is an important cue for percei ...
... even with novel orientations (tests 1 and 3) and patterns (tests 2 and 3) without training. Monkeys regarded texture and disparity gradients as equivalent depth cues, and they perceived a 3D surface orientation from texture gradient cues. We found that texture gradient is an important cue for percei ...
Visual Responses of Pulvinar and Collicular Neurons During Eye
... inferior pulvinar (PI), lateral pulvinar (PL), and superior colliculus were tested. 2. Cells in PI and PL respond to stimulus movement over a wide range of speeds. Some of these cells do not respond to comparable stimulus motion, or discharge only weakly, when it is generated by saccadic or pursuit ...
... inferior pulvinar (PI), lateral pulvinar (PL), and superior colliculus were tested. 2. Cells in PI and PL respond to stimulus movement over a wide range of speeds. Some of these cells do not respond to comparable stimulus motion, or discharge only weakly, when it is generated by saccadic or pursuit ...
What insights can fMRI offer into the structure and function of mid-tier visual areas?
... advantage of high-field systems to acquire data with submillimeter resolution, we are still acquiring data in which a single datum summarizes the responses of tens of thousands of neurons. Excitation and inhibition, spikes and subthreshold membrane potential modulations, local and long-range computa ...
... advantage of high-field systems to acquire data with submillimeter resolution, we are still acquiring data in which a single datum summarizes the responses of tens of thousands of neurons. Excitation and inhibition, spikes and subthreshold membrane potential modulations, local and long-range computa ...
Responses of primate frontal cortex neurons during natural vocal
... be any instance the subject produced a phee within 10 s of hearing a stimulus. An Independent call was classified as any phee produced ⬎10 s after a stimulus presentation. These designations were based on previous studies reporting that phee calls produced within 10 s of a conspecific call were typi ...
... be any instance the subject produced a phee within 10 s of hearing a stimulus. An Independent call was classified as any phee produced ⬎10 s after a stimulus presentation. These designations were based on previous studies reporting that phee calls produced within 10 s of a conspecific call were typi ...
ExamView - Unit 3 Practice Test.tst
... ____ 16. Your conscious awareness of your own name and self-identity depends primarily on the normal ...
... ____ 16. Your conscious awareness of your own name and self-identity depends primarily on the normal ...
Scientific Basis of Pain
... signals to thalamus contralateral to stimulated receptor • VPM processes pain and temperature signals from trigeminal (CNV) analog of spinothalamic system for head and neck ...
... signals to thalamus contralateral to stimulated receptor • VPM processes pain and temperature signals from trigeminal (CNV) analog of spinothalamic system for head and neck ...
Bounded Integration in Parietal Cortex Underlies
... 2006; Shadlen et al., 2006). Consistent with the accumulation-tobound mechanism, LIP neurons increase or decrease their firing rates as evidence mounts for or against the direction associated with the choice target in the response field (RF) of each cell. Furthermore, just before the saccade, LIP ne ...
... 2006; Shadlen et al., 2006). Consistent with the accumulation-tobound mechanism, LIP neurons increase or decrease their firing rates as evidence mounts for or against the direction associated with the choice target in the response field (RF) of each cell. Furthermore, just before the saccade, LIP ne ...
L
... seizures can quickly spread to the contralateral insular cortex. In other words, although ictal vomiting usually means that the nondominant insular cortex is involved, by itself, it may not indicate the hemisphere in which the seizure arose. Conclusions Two-thirds of people with seizures will stop h ...
... seizures can quickly spread to the contralateral insular cortex. In other words, although ictal vomiting usually means that the nondominant insular cortex is involved, by itself, it may not indicate the hemisphere in which the seizure arose. Conclusions Two-thirds of people with seizures will stop h ...
Time perception
Time perception is a field of study within psychology and neuroscience that refers to the subjective experience of time, which is measured by someone's own perception of the duration of the indefinite and continuous unfolding of events. The perceived time interval between two successive events is referred to as perceived duration. Another person's perception of time cannot be directly experienced or understood, but it can be objectively studied and inferred through a number of scientific experiments. Time perception is a construction of the brain that is manipulable and distortable under certain circumstances. These temporal illusions help to expose the underlying neural mechanisms of time perception.Pioneering work, emphasizing species-specific differences, was conducted by Karl Ernst von Baer. Experimental work began under the influence of the psycho-physical notions of Gustav Theodor Fechner with studies of the relationship between perceived and measured time.