A general mechanism for perceptual decision
... versa in specific voxels in the ventral temporal cortex reflect the change in activity in a population of neurons that are more responsive to faces than to houses, and vice versa. Our task thus enabled us to identify two brain regions, one more sensitive to faces and another to houses, and to test w ...
... versa in specific voxels in the ventral temporal cortex reflect the change in activity in a population of neurons that are more responsive to faces than to houses, and vice versa. Our task thus enabled us to identify two brain regions, one more sensitive to faces and another to houses, and to test w ...
2-Motor System2009-03-20 18:254.4 MB
... It results in re-emergence of suckling and grasp reflex in adults. Its lesion do not case paralysis but only slowing of the complex limb movement. Lesion may result in loss of short-term or working memory. When damaged with supplementary cortex it may result in APRAXIA. ...
... It results in re-emergence of suckling and grasp reflex in adults. Its lesion do not case paralysis but only slowing of the complex limb movement. Lesion may result in loss of short-term or working memory. When damaged with supplementary cortex it may result in APRAXIA. ...
The Neurobiology of EMDR: Exploring the
... almost all the major brain structures, the thalamus is bilateral. The two almond-shaped thalami are comprised of about 50 groupings of nerve cells, neural tissue, and fibers called nuclei. With the exception of olfaction (smell), which is projected first to the amygdala, all external sensory input i ...
... almost all the major brain structures, the thalamus is bilateral. The two almond-shaped thalami are comprised of about 50 groupings of nerve cells, neural tissue, and fibers called nuclei. With the exception of olfaction (smell), which is projected first to the amygdala, all external sensory input i ...
Structural and Functional areas of the Medulla Oblongata
... memory for just a few seconds. Very important to reading. Short-Term Memory (STM): Last for a few seconds to a few hours. Quickly forgotten if it’s not reinforced. Working Memory: a form of STM we use frequently such as in looking up a phone number and remembering it long enough to dial the phone ...
... memory for just a few seconds. Very important to reading. Short-Term Memory (STM): Last for a few seconds to a few hours. Quickly forgotten if it’s not reinforced. Working Memory: a form of STM we use frequently such as in looking up a phone number and remembering it long enough to dial the phone ...
LGN
... LGN interneurons make only local connections. There are more interneurons than relay neurons! LGN neurons get feedback connections from cortex. (The one-way connection from retina to rest of brain is unique in the visual system). LGN gets other inputs as well. For example: from brainstem and perigen ...
... LGN interneurons make only local connections. There are more interneurons than relay neurons! LGN neurons get feedback connections from cortex. (The one-way connection from retina to rest of brain is unique in the visual system). LGN gets other inputs as well. For example: from brainstem and perigen ...
Alzheimer`s Disease: Metabolic Uncoupling of Associative Brain
... tional activities between ipsilateral parietal and frontal regions, and between homologous right and left hemisphere regions. This was demonstrated by Horwitz, et al,' 8 who determined partial correlation coefficients between rCMRg|C values in pairs of brain regions examined with PET, after correcti ...
... tional activities between ipsilateral parietal and frontal regions, and between homologous right and left hemisphere regions. This was demonstrated by Horwitz, et al,' 8 who determined partial correlation coefficients between rCMRg|C values in pairs of brain regions examined with PET, after correcti ...
Document
... and complex, rangeing from energized and “hyper” to unconscious and comatose. During deep sleep, all metabolic functions are significantly reduced; during TEM sleep, muscular activities ar inhibited while cerebral activity is similar to that seen in awake individuals. Sleep disorders result in abnor ...
... and complex, rangeing from energized and “hyper” to unconscious and comatose. During deep sleep, all metabolic functions are significantly reduced; during TEM sleep, muscular activities ar inhibited while cerebral activity is similar to that seen in awake individuals. Sleep disorders result in abnor ...
Neural Basis of Emotion - Caltech Division of Humanities and Social
... which they should make a response to one stimulus to obtain a reward, and should not make a response to another stimulus in order to avoid a punishment), in that they Go on the NoGo trials. They are also impaired in an object-reversal task in that they respond to the object which was formerly reward ...
... which they should make a response to one stimulus to obtain a reward, and should not make a response to another stimulus in order to avoid a punishment), in that they Go on the NoGo trials. They are also impaired in an object-reversal task in that they respond to the object which was formerly reward ...
Glutamate-like immunoreactivity in axon terminals from the olfactory
... perfusion-fixed through the heart with 4% formaldehyde for 30 s followed by 1 litre of 5% glutaraldehyde (both fixatives prepared in 0.1M cacodylate buffer, pH 7.4). The brains were removed from the skull and postfixed overnight at 4 "C. Both the lateral olfactory tract and the piriform cortex were ...
... perfusion-fixed through the heart with 4% formaldehyde for 30 s followed by 1 litre of 5% glutaraldehyde (both fixatives prepared in 0.1M cacodylate buffer, pH 7.4). The brains were removed from the skull and postfixed overnight at 4 "C. Both the lateral olfactory tract and the piriform cortex were ...
Executive function
... associations between stimuli and responses. This may be, for instance, because they require: overcoming the tendency to enact strong stimulus–response associations that are currently not relevant (‘inhibition’); remembering and manipulating information over delay periods, especially in the face of i ...
... associations between stimuli and responses. This may be, for instance, because they require: overcoming the tendency to enact strong stimulus–response associations that are currently not relevant (‘inhibition’); remembering and manipulating information over delay periods, especially in the face of i ...
Central adrenergic receptor changes in the
... Adrenergic receptor binding characteristics were analyzed in the mutant mouse tottering (tg/tg), a single gene locus autosomal recessive mutation causing hyperinnervation by locus coeruleus neurons of their target regions, which results in epilepsy. Instead of the expected down-regulation of recepto ...
... Adrenergic receptor binding characteristics were analyzed in the mutant mouse tottering (tg/tg), a single gene locus autosomal recessive mutation causing hyperinnervation by locus coeruleus neurons of their target regions, which results in epilepsy. Instead of the expected down-regulation of recepto ...
Texture discrimination and unit recordings in the rat
... In one animal, we recorded unit activity during the discrimination task. After it had attained a criterion performance of 90% correct, the animal underwent the second surgical procedure described above and in detail in Ref. [7]. A recording microelectrode was positioned in order to monitor activity ...
... In one animal, we recorded unit activity during the discrimination task. After it had attained a criterion performance of 90% correct, the animal underwent the second surgical procedure described above and in detail in Ref. [7]. A recording microelectrode was positioned in order to monitor activity ...
Arterial Blood Supply to the Auditory Cortex of the Chinchilla
... often referred to as a blood oxygen level- dependent (BOLD) effect. In our experimental work, using optical imaging of intrinsic signals in the auditory cortex, we have used a chinchilla (Chinchilla laniger) animal model (6, 7). However, to date there has been no systematic study of the arterial blo ...
... often referred to as a blood oxygen level- dependent (BOLD) effect. In our experimental work, using optical imaging of intrinsic signals in the auditory cortex, we have used a chinchilla (Chinchilla laniger) animal model (6, 7). However, to date there has been no systematic study of the arterial blo ...
Hyperbaric oxygen preconditioning induces tolerance against brain
... injury, even in the ischemic core. Since HBO-PC stimulates ROS production, it is plausible that increased levels of ROS stimulate the induction of the catalase gene. As for GSH-px activity, no significant difference was observed between MCAO group and HBO-PC + MCAO group at 24 h after ischemia– repe ...
... injury, even in the ischemic core. Since HBO-PC stimulates ROS production, it is plausible that increased levels of ROS stimulate the induction of the catalase gene. As for GSH-px activity, no significant difference was observed between MCAO group and HBO-PC + MCAO group at 24 h after ischemia– repe ...
Nervous System PPT
... – Neurons compete for growth-supporting factors in order to survive – Only half the synapses that form during embryo development survive into adulthood ...
... – Neurons compete for growth-supporting factors in order to survive – Only half the synapses that form during embryo development survive into adulthood ...
Motor Cortex, Basal Ganglia, Cerebellum
... Note: effect of primary motor cortex lesions or interruptions of corticospinal tract in man (stroke): immediate loss or reduction of voluntary function in contralateral muscles corresponding to the region of injury, and often spastic paralysis; frequently there is some recovery of function with time ...
... Note: effect of primary motor cortex lesions or interruptions of corticospinal tract in man (stroke): immediate loss or reduction of voluntary function in contralateral muscles corresponding to the region of injury, and often spastic paralysis; frequently there is some recovery of function with time ...
49_Lecture_Presentation
... – Neurons compete for growth-supporting factors in order to survive – Only half the synapses that form during embryo development survive into adulthood ...
... – Neurons compete for growth-supporting factors in order to survive – Only half the synapses that form during embryo development survive into adulthood ...
Sensory Information Sensory Receptors
... Cross to the opposite side of the spinal cord before ascending Ascend within the anterior or lateral spinothalamic tracts: – the anterior tracts carry crude touch and pressure sensations – the lateral tracts carry pain and temperature sensations ...
... Cross to the opposite side of the spinal cord before ascending Ascend within the anterior or lateral spinothalamic tracts: – the anterior tracts carry crude touch and pressure sensations – the lateral tracts carry pain and temperature sensations ...
high. 1, treated virgin
... neuron (identified as the flexor inhibitor) is excited. Although records from the root supplying the slow extensor muscles are not shown here, other experiments (4, 6) have demonstrated that central elements producing this pattern of flexor output always simultaneously excite extensor motoneurons an ...
... neuron (identified as the flexor inhibitor) is excited. Although records from the root supplying the slow extensor muscles are not shown here, other experiments (4, 6) have demonstrated that central elements producing this pattern of flexor output always simultaneously excite extensor motoneurons an ...
Neural computations that underlie decisions about sensory stimuli
... light, with some values being more likely than others when light is present (see Box 1). How do you use the value from the detector to decide if the light was present? This problem consists of deciding which hypothesis – light is present (h1) or light is absent (h2) – is most likely to be true given ...
... light, with some values being more likely than others when light is present (see Box 1). How do you use the value from the detector to decide if the light was present? This problem consists of deciding which hypothesis – light is present (h1) or light is absent (h2) – is most likely to be true given ...
Prefrontal abilities
... but crucial, have been and are occurring regularly in the human brain. In this postulation anatomical alterations underlie the brain capability needed for current technological and intellectual gains. In this theory the failure to develop the current technological wonders in previous centuries was d ...
... but crucial, have been and are occurring regularly in the human brain. In this postulation anatomical alterations underlie the brain capability needed for current technological and intellectual gains. In this theory the failure to develop the current technological wonders in previous centuries was d ...
Unilateral Ibotenic Acid Lesions of the Prefrontal Cortex Reduce
... PD model rats. Disruption of the excitatory influence of the frontal cortex on the STN may bring about important clinical advantages, since it is possible to influence the activity of the basal ganglia from regions of the brain more superficial than the STN. In this regard, Ikeguchi . [25] showed that ...
... PD model rats. Disruption of the excitatory influence of the frontal cortex on the STN may bring about important clinical advantages, since it is possible to influence the activity of the basal ganglia from regions of the brain more superficial than the STN. In this regard, Ikeguchi . [25] showed that ...
Cognitive therapy
... hypervigilance has shown success, showing that it might be a contributing factor in OCD (-) The cognitive approach concentrates on internal cognitions as an explanation for OCD and tends to ignore the social and biological factors that might be contributing to the condition ...
... hypervigilance has shown success, showing that it might be a contributing factor in OCD (-) The cognitive approach concentrates on internal cognitions as an explanation for OCD and tends to ignore the social and biological factors that might be contributing to the condition ...
Where is the proprioception first processed? Thalamus vs. Cerebellum
... – Unknown distribution within and projections from VB to cortex – Not known if the result of immutable connections or dynamic maintenance and modification ...
... – Unknown distribution within and projections from VB to cortex – Not known if the result of immutable connections or dynamic maintenance and modification ...
From circuits to behavior: a bridge too far?
... circuit. These computations depend on multiple circuits and mechanisms acting in combination, which may vary from region to region and species to species. In this respect, they resemble a set of instructions in a computer language, which does not map uniquely onto a specific set of transistors or ...
... circuit. These computations depend on multiple circuits and mechanisms acting in combination, which may vary from region to region and species to species. In this respect, they resemble a set of instructions in a computer language, which does not map uniquely onto a specific set of transistors or ...