Neural mechanism of rapid eye movement sleep generation
... fast and irregular respiration, increased heart rate and elevated brain temperature. The brain glucose metabolism increases significantly in the thalamus, the limbic system and the pontine reticular formation during REM sleep as compared to quiet wakefulness15. The neuroimaging studies have provided ...
... fast and irregular respiration, increased heart rate and elevated brain temperature. The brain glucose metabolism increases significantly in the thalamus, the limbic system and the pontine reticular formation during REM sleep as compared to quiet wakefulness15. The neuroimaging studies have provided ...
... the anterior intraparietal, medial intraparietal, Brodman’s area V6a (layer V) and 34 and lateral intraparietal areas of monkeys and humans. Those areas were activated during activities that required manipulation movements and visuospatial activities (look, attention, point and grasp).14 In the intr ...
remembering familiar people: the posterior cingulate cortex and
... However, naturally acquired autobiographical memories di¡er from memories of standardized stimuli in important ways. Neuroimaging studies of natural memories may reveal distinctive patterns of brain activation and may have particular value in assessing clinical disorders of memory. This study used f ...
... However, naturally acquired autobiographical memories di¡er from memories of standardized stimuli in important ways. Neuroimaging studies of natural memories may reveal distinctive patterns of brain activation and may have particular value in assessing clinical disorders of memory. This study used f ...
LESSON 4.3 WORKBOOK What makes us go to sleep, and what
... So what causes narcolepsy? Narcolepsy is a relatively uncommon condition — only one case per 2,500 people — but it is a great example of a defect in the flip-flop switch that controls the transition between wakefulness and sleep, particularly REM sleep. Narcoleptics have sleep attacks during the day ...
... So what causes narcolepsy? Narcolepsy is a relatively uncommon condition — only one case per 2,500 people — but it is a great example of a defect in the flip-flop switch that controls the transition between wakefulness and sleep, particularly REM sleep. Narcoleptics have sleep attacks during the day ...
Chapter 12 PowerPoint - Hillsborough Community College
... which person can be aroused by stimulation • Cortical activity is depressed, but brain stem ...
... which person can be aroused by stimulation • Cortical activity is depressed, but brain stem ...
REM Sleep - Test Page
... However, to a surprising extent this is not the case. As I review later, REM sleep reappears within hours after some of these lesions. When both parts of the brain remain, signs usually appear on only one side of the cut. This kind of positive evidence is much more easily interpreted than loss of fu ...
... However, to a surprising extent this is not the case. As I review later, REM sleep reappears within hours after some of these lesions. When both parts of the brain remain, signs usually appear on only one side of the cut. This kind of positive evidence is much more easily interpreted than loss of fu ...
Muscle tone regulation during REM sleep
... indicate that the subcoeruleus neurons may form the ‘REM generator’ in the brainstem. The subcoeruleus has been the focus of many other sleep researchers investigating REM sleep mechanisms, although a variety of names such as peri-locus coeruleus alpha, peribrachial region and pontine inhibitory reg ...
... indicate that the subcoeruleus neurons may form the ‘REM generator’ in the brainstem. The subcoeruleus has been the focus of many other sleep researchers investigating REM sleep mechanisms, although a variety of names such as peri-locus coeruleus alpha, peribrachial region and pontine inhibitory reg ...
Short-Term and Long-Term Memory in Early
... A normal comparison (NC) group consisted of 19 participants, who were matched on the basis of age, sex, and parents' years of education (11 males, 8 females; 18 right-handed, 1 left-handed). Children in the NC group had no history of brain injury, stroke, or epilepsy, were not on any medications, an ...
... A normal comparison (NC) group consisted of 19 participants, who were matched on the basis of age, sex, and parents' years of education (11 males, 8 females; 18 right-handed, 1 left-handed). Children in the NC group had no history of brain injury, stroke, or epilepsy, were not on any medications, an ...
Neuroimaging of cognitive functions in human parietal cortex Jody C
... In addition to the functions reviewed above, parietal activation has also been reported for a stunningly diverse range of stimuli and tasks. These include motion processing [52•,66•,67,68], stereo vision [69], spatial [70,71] and non-spatial working memory (which shows considerable overlap with visu ...
... In addition to the functions reviewed above, parietal activation has also been reported for a stunningly diverse range of stimuli and tasks. These include motion processing [52•,66•,67,68], stereo vision [69], spatial [70,71] and non-spatial working memory (which shows considerable overlap with visu ...
The Brain - Personal
... perception, voluntary motor initiation, communication, memory storage, understanding • Each hemisphere connects to contralateral side of the body • There is lateralization of cortical function in the hemispheres ...
... perception, voluntary motor initiation, communication, memory storage, understanding • Each hemisphere connects to contralateral side of the body • There is lateralization of cortical function in the hemispheres ...
May 21, 04.doc
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
May 30, 04copy.doc
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
May 11, 04copy.doc
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
The Neural Fate of Consciously Perceived and Missed Events in the
... frontal, anterior cingulate (AC), and intraparietal areas may represent the attentional bottleneck to perceptual awareness. This hypothesis predicts that the parietofrontal network should respond differently than the medial temporal cortex under the three T2 conditions. Specifically, activity in thi ...
... frontal, anterior cingulate (AC), and intraparietal areas may represent the attentional bottleneck to perceptual awareness. This hypothesis predicts that the parietofrontal network should respond differently than the medial temporal cortex under the three T2 conditions. Specifically, activity in thi ...
Arousal Systems
... Periodic episodes of spontaneous arousal, Arouse to external stimuli, All other components of consciousness and cognition are absent . Arousal occurs in the absence of consciousness because awareness is absent. • Extensive bilateral cortical, subcortical white matter, or thalamic injuries, with rela ...
... Periodic episodes of spontaneous arousal, Arouse to external stimuli, All other components of consciousness and cognition are absent . Arousal occurs in the absence of consciousness because awareness is absent. • Extensive bilateral cortical, subcortical white matter, or thalamic injuries, with rela ...
basic mechanisms of sleep
... the more specific organization of those systems in the control of the alternation of wake, non–rapid eye movement (NREM), and REM sleep. Although the main focus of the chapter is on the our own model of reciprocal aminergic-cholinergic interaction, we review new data suggesting the involvement of ma ...
... the more specific organization of those systems in the control of the alternation of wake, non–rapid eye movement (NREM), and REM sleep. Although the main focus of the chapter is on the our own model of reciprocal aminergic-cholinergic interaction, we review new data suggesting the involvement of ma ...
May 21, 04copy.doc
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
... cortex, it was important to consider GABA and its receptors as suitable candidates responsible for these physiological changes. Blocking GABAA receptors with the antagonist bicuculline results in signs of cortical disinhibition (Kyriazi et al, 1996) that are similar to those from deprived barrel cor ...
CNS Slide Show
... – plays key role in motor control by relaying signals from cerebellum to cerebrum and providing feedback loops between the cerebral cortex and the basal nuclei – involved in the memory and emotional functions of the limbic system – a complex of structures that include some cerebral cortex of the tem ...
... – plays key role in motor control by relaying signals from cerebellum to cerebrum and providing feedback loops between the cerebral cortex and the basal nuclei – involved in the memory and emotional functions of the limbic system – a complex of structures that include some cerebral cortex of the tem ...
Csercsa Richárd
... Sleep seems to be essential for every living creature with a nervous system, though its function is not clear yet. It can be observed in most mammals and birds, and also in many insects (e.g. cockroach, bee, scorpion, or Drosophila), reptiles (e.g. turtle), amphibians (e.g. tree frog), and fish (e.g ...
... Sleep seems to be essential for every living creature with a nervous system, though its function is not clear yet. It can be observed in most mammals and birds, and also in many insects (e.g. cockroach, bee, scorpion, or Drosophila), reptiles (e.g. turtle), amphibians (e.g. tree frog), and fish (e.g ...
Institutionen för medicinsk teknik - IMT Master's Program Biomedical Engineering
... the functional organization of the brain. The knowledge gained with fMRI about how the brain functions and how it is organized is mainly derived from experiments involving active tasks, like moving the right arm for example, and the related effects elicited in the neural activity. However much of th ...
... the functional organization of the brain. The knowledge gained with fMRI about how the brain functions and how it is organized is mainly derived from experiments involving active tasks, like moving the right arm for example, and the related effects elicited in the neural activity. However much of th ...
Anomalous Prefrontal-Subcortical Activation in
... Statistical analysis was performed for individual and group data using the general linear model and the theory of gaussian random fields as implemented in the SPM99 program.40 Activation foci were superimposed on high-resolution T1-weighted images, and their locations were interpreted using the Tala ...
... Statistical analysis was performed for individual and group data using the general linear model and the theory of gaussian random fields as implemented in the SPM99 program.40 Activation foci were superimposed on high-resolution T1-weighted images, and their locations were interpreted using the Tala ...
Electrophysiological markers of Rapid Eye Movements in
... pharmacological treatment and implanted with electrodes for potential surgical treatment (18 patients, 129 regions recorded and hundreds of units, see Methods). The dataset includes brain recordings at different scales (scalp EEG, depth EEG, LFP and single-unit recordings), which gives us the possib ...
... pharmacological treatment and implanted with electrodes for potential surgical treatment (18 patients, 129 regions recorded and hundreds of units, see Methods). The dataset includes brain recordings at different scales (scalp EEG, depth EEG, LFP and single-unit recordings), which gives us the possib ...
A role for sleep in brain plasticity
... to the ability of the brain to persistently modify its structure and function according to genetic ...
... to the ability of the brain to persistently modify its structure and function according to genetic ...
Effect of Lesions of the Ventrolateral Preoptic Nucleus on NREM and
... wakefulness, are particularly numerous in the VLPO (Alam et al., 1995; Szymusiak et al., 1998). The sleep-positive neurons in the VLPO innervate the histaminergic neurons in the tuberomammillary nucleus (TMN) (Sherin et al., 1996). These projections originate from a dense cluster of VLPO neurons jus ...
... wakefulness, are particularly numerous in the VLPO (Alam et al., 1995; Szymusiak et al., 1998). The sleep-positive neurons in the VLPO innervate the histaminergic neurons in the tuberomammillary nucleus (TMN) (Sherin et al., 1996). These projections originate from a dense cluster of VLPO neurons jus ...
Neuroimaging Studies of Memory. In Encyclopedia of the
... takes in the brain. Beyond this, though, there is also an influence of the task with which a person is faced, as many different operations may be performed on any given type of material. For example, one can process a word by noting its meaning or by noting whether it is printed in uppercase or lowe ...
... takes in the brain. Beyond this, though, there is also an influence of the task with which a person is faced, as many different operations may be performed on any given type of material. For example, one can process a word by noting its meaning or by noting whether it is printed in uppercase or lowe ...
Effects of sleep deprivation on cognitive performance
It has been estimated that over 20% of adults suffer from some form of sleep deprivation. Insomnia and sleep deprivation are common symptoms of depression and can be an indication of other mental disorders. The consequences of not getting enough sleep could have dire results; not only to the health of the individual, but those around them as sleep deprivation increases the risk of human-error related accidents, especially with vigilance-based tasks involving technology.