Fractionation of social brain circuits in autism
... comparisons of group/condition means in task-based connectivity studies), it is still unclear how comprehensively these regions of interest will represent the full set of connectivity differences that might be present in the data. This situation can be influenced by the choice of stimuli and tasks a ...
... comparisons of group/condition means in task-based connectivity studies), it is still unclear how comprehensively these regions of interest will represent the full set of connectivity differences that might be present in the data. This situation can be influenced by the choice of stimuli and tasks a ...
Time-frequency computational model for echo
... environment from processing echoes of these sounds (Neuweiler, 2000; Popper and Fay, 1995). The images these bats perceive incorporate the shapes of objects at their correct locations over the operating range of their sonar (e.g., ~5 m for big brown bats; Kick, 1982). Experimental evidence indicates ...
... environment from processing echoes of these sounds (Neuweiler, 2000; Popper and Fay, 1995). The images these bats perceive incorporate the shapes of objects at their correct locations over the operating range of their sonar (e.g., ~5 m for big brown bats; Kick, 1982). Experimental evidence indicates ...
Foundations for a Circuit Complexity Theory of Sensory
... plexity measures in traditional circuit complexity theory are the number (and types) of gates, as well as the depth of a circuit. The latter is defined as the length of the longest directed path in the underlying graph, and is also interpreted as the computation time of the circuit. The focus lies ...
... plexity measures in traditional circuit complexity theory are the number (and types) of gates, as well as the depth of a circuit. The latter is defined as the length of the longest directed path in the underlying graph, and is also interpreted as the computation time of the circuit. The focus lies ...
FIGURE LEGENDS FIGURE 46.1 Lateral viewof a human brain
... elsewhere in the visual field. (B) When the subject directed attention to a peripheral target location and performed an object discrimination task, a distributed frontoparietal network was activated, including the SEF, the FEF, and the SPL. (C) The same network of frontal and parietal areas was acti ...
... elsewhere in the visual field. (B) When the subject directed attention to a peripheral target location and performed an object discrimination task, a distributed frontoparietal network was activated, including the SEF, the FEF, and the SPL. (C) The same network of frontal and parietal areas was acti ...
12 - FacultyWeb
... • Survivors often develop postpolio syndrome many years later, as neurons are lost ...
... • Survivors often develop postpolio syndrome many years later, as neurons are lost ...
Temporal delays among place cells determine the frequency of
... pose several questions. Given that the output of hippocampal pyramidal cells is in tune with their targets, how do phase precessing place cells generate a rhythmic activity at theta frequency? Furthermore, how does the neuronal coordination allow for large differences of place cell oscillation frequ ...
... pose several questions. Given that the output of hippocampal pyramidal cells is in tune with their targets, how do phase precessing place cells generate a rhythmic activity at theta frequency? Furthermore, how does the neuronal coordination allow for large differences of place cell oscillation frequ ...
MS Word DOC - AvianBrain.org
... knowledge on the non-mammalian brain and techniques for studying the brain were both very poor and limited (Huber and Crosby, 1929; Ariëns-Kappers, Huber and Crosby, 1936). The inherited names that we commonly employ for the avian brain are represented in the most popular avian brain atlases (on the ...
... knowledge on the non-mammalian brain and techniques for studying the brain were both very poor and limited (Huber and Crosby, 1929; Ariëns-Kappers, Huber and Crosby, 1936). The inherited names that we commonly employ for the avian brain are represented in the most popular avian brain atlases (on the ...
Nervous Regulation
... The way it works 1. Receptor- receives the stimulus and initiates an impulse 2. Sensory neuron- carry impulses from the receptors toward the spinal cord and brain 3. Interneuron- relay impulses from one neuron to another 4. Motor neuron- carry impulses from brain and spinal cord toward the ...
... The way it works 1. Receptor- receives the stimulus and initiates an impulse 2. Sensory neuron- carry impulses from the receptors toward the spinal cord and brain 3. Interneuron- relay impulses from one neuron to another 4. Motor neuron- carry impulses from brain and spinal cord toward the ...
My Secret Role in True Happiness: A Story of a Neuron
... My creation began from an original stem cell, which was produced from a collection of cells called an embryonic disk. The stem cell eventually developed into precursor cells for neurons. My precursor cell then produced what is called a neuroblast, or a neuron with an unknown fate. It was at this poi ...
... My creation began from an original stem cell, which was produced from a collection of cells called an embryonic disk. The stem cell eventually developed into precursor cells for neurons. My precursor cell then produced what is called a neuroblast, or a neuron with an unknown fate. It was at this poi ...
Neurophysiological bases underlying the organization of intentional
... related to each other by meaning of the problem’’. In this definition ‘‘motor problem’’ clearly refers to what we usually identify with the concept of motor goal. Nevertheless, even very simple discrete movements – such as arm reaches, saccades or extension/flexion of a finger – can be considered as go ...
... related to each other by meaning of the problem’’. In this definition ‘‘motor problem’’ clearly refers to what we usually identify with the concept of motor goal. Nevertheless, even very simple discrete movements – such as arm reaches, saccades or extension/flexion of a finger – can be considered as go ...
Descartes` Error: Emotion, Reason, and the Human Brain
... nent findings from neuropsychological research in humans and animals. Further, I propose that human reason depends on several brain systems, working in concert across many levels of neuronal organization, rather than on a single brain center. Both "high-level" and "low-level" brain regions, from the ...
... nent findings from neuropsychological research in humans and animals. Further, I propose that human reason depends on several brain systems, working in concert across many levels of neuronal organization, rather than on a single brain center. Both "high-level" and "low-level" brain regions, from the ...
Crocodilian Forebrain: Evolution and Development
... following features were examined: identification and classification of dorsal thalamic nuclei and their respective connections with the telencephalon, presence of local circuit neurons in the dorsal thalamic nuclei, telencephalic projections to the dorsal thalamus, and organization of the thalamic r ...
... following features were examined: identification and classification of dorsal thalamic nuclei and their respective connections with the telencephalon, presence of local circuit neurons in the dorsal thalamic nuclei, telencephalic projections to the dorsal thalamus, and organization of the thalamic r ...
Sliding
... the NMDAR by reducing the Mg block post then pre-> LTD: several hypothesis 1) Ca entry during the AP. Ca is not fully removed by the time synapses are activated and help to bring [Ca]i to the LTD threshold 2) Ca entry during the AP desensitizes the NMDAR so it does no reach the threshold for LTP. (c ...
... the NMDAR by reducing the Mg block post then pre-> LTD: several hypothesis 1) Ca entry during the AP. Ca is not fully removed by the time synapses are activated and help to bring [Ca]i to the LTD threshold 2) Ca entry during the AP desensitizes the NMDAR so it does no reach the threshold for LTP. (c ...
Synchronous Oscillatory Neural Ensembles for Rules in the
... flexibility crucial for intelligent behavior. The prefrontal cortex (PFC) is key to rule-based behaviors (Miller and Cohen, 2001). Rule-based tasks, especially those involving rule-switching, activate the human PFC (Dove et al., 2000; MacDonald, 2000; Sakai and Passingham, 2003) and are impaired fol ...
... flexibility crucial for intelligent behavior. The prefrontal cortex (PFC) is key to rule-based behaviors (Miller and Cohen, 2001). Rule-based tasks, especially those involving rule-switching, activate the human PFC (Dove et al., 2000; MacDonald, 2000; Sakai and Passingham, 2003) and are impaired fol ...
Neural realisation of the SP theory
... the system is exactly the same as before except that row 0 contains the encoded pattern and each symbol in that pattern is aligned with matching symbols in the rows below. The original sentence has, in effect, been recreated because the alignment contains the words of the sentence in their correct o ...
... the system is exactly the same as before except that row 0 contains the encoded pattern and each symbol in that pattern is aligned with matching symbols in the rows below. The original sentence has, in effect, been recreated because the alignment contains the words of the sentence in their correct o ...
Hemispheric Asymmetry Reduction in Older Adults
... One of the first activation studies of cognitive aging was that of Grady et al. (1994) on visual perception. During face matching, older adults showed weaker activity than younger adults showed in the occipital cortex but stronger activity in more anterior brain ...
... One of the first activation studies of cognitive aging was that of Grady et al. (1994) on visual perception. During face matching, older adults showed weaker activity than younger adults showed in the occipital cortex but stronger activity in more anterior brain ...
A biologically constrained learning mechanism in networks of formal
... The learning rule leads to a symmetrical synaptic matrix, which is a severe restriction and at best an approximation for real neural networks. (iii) The synaptic changes undergone during the learning phase include the possibility of sign reversals for the synaptic strengths, which means that an exci ...
... The learning rule leads to a symmetrical synaptic matrix, which is a severe restriction and at best an approximation for real neural networks. (iii) The synaptic changes undergone during the learning phase include the possibility of sign reversals for the synaptic strengths, which means that an exci ...
Chapter 9 Sleep and Biological Rhythms
... The fact that REM sleep occurs at regular 90-minute intervals suggests that a brain mechanism alternately causes REM and slow-wave sleep The cyclic nature of REM sleep appears to be controlled by a “clock” in the brain that also controls an activity cycle that continues through ...
... The fact that REM sleep occurs at regular 90-minute intervals suggests that a brain mechanism alternately causes REM and slow-wave sleep The cyclic nature of REM sleep appears to be controlled by a “clock” in the brain that also controls an activity cycle that continues through ...
The Motor Cortex and Descending Control of Movement
... subsequently numerous different muscles. The traditional view is that the RST is largely concerned with control of proximal and postural muscles, however recent work has demonstrated that there are also direct monosynaptic RST projections to the distal musculature;19 these were found to be weaker th ...
... subsequently numerous different muscles. The traditional view is that the RST is largely concerned with control of proximal and postural muscles, however recent work has demonstrated that there are also direct monosynaptic RST projections to the distal musculature;19 these were found to be weaker th ...
Long-term use of psychedelic drugs is associated with differences in
... survived well into the twentieth century, but has expanded beyond indigenous use following contact of previously isolated groups with foreigners (Tupper, 2008). One of the most interesting contemporary adaptations of psychedelic use is the syncretism observed in Brazilian religious groups that consu ...
... survived well into the twentieth century, but has expanded beyond indigenous use following contact of previously isolated groups with foreigners (Tupper, 2008). One of the most interesting contemporary adaptations of psychedelic use is the syncretism observed in Brazilian religious groups that consu ...
Visual Categorization and the Primate Prefrontal Cortex
... 500 ms of fixation, a sample image was presented at the center of the screen for 600 ms, followed by a 1,000-ms delay. Then a choice image appeared. If the sample and choice stimuli were from the same category (a category match), the monkeys were required to release the lever before the stimulus dis ...
... 500 ms of fixation, a sample image was presented at the center of the screen for 600 ms, followed by a 1,000-ms delay. Then a choice image appeared. If the sample and choice stimuli were from the same category (a category match), the monkeys were required to release the lever before the stimulus dis ...
Dissertation 20161009 Text Citations
... space model,” which suggests that the response in the amygdala is a function of geometric distance from an average face (Mattavelli, Andrews, Asghar, Towler, & Young, 2012). Thus, as face dimensions become increasingly atypical, the amygdala responds with a stronger activation. In both computer-gene ...
... space model,” which suggests that the response in the amygdala is a function of geometric distance from an average face (Mattavelli, Andrews, Asghar, Towler, & Young, 2012). Thus, as face dimensions become increasingly atypical, the amygdala responds with a stronger activation. In both computer-gene ...