Lateral Hypothalamus Contains Two Types of Palatability
... Recording sessions typically lasted less than an hour and consisted of 15–20 repeats of each of the five taste stimuli, for a total of 75–100 separate taste deliveries. We have previously shown that palatability and neural responses are stable across this length of session and volume of fluid consum ...
... Recording sessions typically lasted less than an hour and consisted of 15–20 repeats of each of the five taste stimuli, for a total of 75–100 separate taste deliveries. We have previously shown that palatability and neural responses are stable across this length of session and volume of fluid consum ...
Neural Mapping of Direction and Frequency in
... and the directional sensitivities of these M afferents correspond to identified L afferents with the same locations and directional sensitivities described in previous work (Jacobs and Theunissen, 1996), with one exception. The exception is that one additional identified M afferent (Fig. 1, #13) was ...
... and the directional sensitivities of these M afferents correspond to identified L afferents with the same locations and directional sensitivities described in previous work (Jacobs and Theunissen, 1996), with one exception. The exception is that one additional identified M afferent (Fig. 1, #13) was ...
Newborn infants` auditory system is sensitive to Western music
... location (for a review, see Trehub, 2003), as well as more complex sound features based on e.g., abstract rules that define the order of the stimuli (Ruusuvirta et al., 2003; Carral et al., 2005). Previous behavioral and EEG studies suggest that infants demonstrate the readiness to process music dur ...
... location (for a review, see Trehub, 2003), as well as more complex sound features based on e.g., abstract rules that define the order of the stimuli (Ruusuvirta et al., 2003; Carral et al., 2005). Previous behavioral and EEG studies suggest that infants demonstrate the readiness to process music dur ...
Fluctuations in Perceptual Decisions Panagiota Theodoni
... impressions which are contrary to ours, and that the individual himself does not always think the same in matters of sense-perception. Thus it is uncertain which of these impressions are true or false; for one kind is no more true than another, but equally so. And hence Democritus says that either t ...
... impressions which are contrary to ours, and that the individual himself does not always think the same in matters of sense-perception. Thus it is uncertain which of these impressions are true or false; for one kind is no more true than another, but equally so. And hence Democritus says that either t ...
The effect of selective attention on auditory frequency
... noise depends largely on the differences in neural level representations of the auditory inputs. The auditory cortex (AC) is tonotopically organized, which means that the frequency information is mapped to the cortical topography. Thus, similar frequencies are processed in close vicinity at AC. The ...
... noise depends largely on the differences in neural level representations of the auditory inputs. The auditory cortex (AC) is tonotopically organized, which means that the frequency information is mapped to the cortical topography. Thus, similar frequencies are processed in close vicinity at AC. The ...
The neural mechanisms of perceptual filling-in
... Steady fixation and stabilized retinal image. Filling-in also occurs in the normal visual field where there is no deficit of visual inputs. In one example, stabilization of the border of a surface on the retina causes fillingin. For instance, when steady fixation is maintained, the contrast of an ob ...
... Steady fixation and stabilized retinal image. Filling-in also occurs in the normal visual field where there is no deficit of visual inputs. In one example, stabilization of the border of a surface on the retina causes fillingin. For instance, when steady fixation is maintained, the contrast of an ob ...
Neuronal control of leech behavior - Emory Biology
... generates that behavior. One approach to studying these questions is to study the function of a particular neural structure (e.g. the superior colliculus or the habenular nucleus) in a complex brain and ask how it works. Another approach is to select a behavior and ask how the properties of neurons ...
... generates that behavior. One approach to studying these questions is to study the function of a particular neural structure (e.g. the superior colliculus or the habenular nucleus) in a complex brain and ask how it works. Another approach is to select a behavior and ask how the properties of neurons ...
ITI-signals and prelimbic cortex facilitate avoidance acquisition and
... As a model of anxiety disorder vulnerability, male Wistar-Kyoto (WKY) rats acquire leverpress avoidance behavior more readily than outbred Sprague-Dawley rats, and their acquisition is enhanced by the presence of a discrete signal presented during the inter-trial intervals (ITIs), suggesting that it ...
... As a model of anxiety disorder vulnerability, male Wistar-Kyoto (WKY) rats acquire leverpress avoidance behavior more readily than outbred Sprague-Dawley rats, and their acquisition is enhanced by the presence of a discrete signal presented during the inter-trial intervals (ITIs), suggesting that it ...
Aggression in Drosophila - American Psychological Association
... is a quantifiable well-defined and easily evoked behavior; (b) powerful genetic methods allow investigators to manipulate genes of interest at any place or time during embryonic, larval, pupal or adult life, and while flies are behaving; (c) the growth of the relatively new field of optogenetics mak ...
... is a quantifiable well-defined and easily evoked behavior; (b) powerful genetic methods allow investigators to manipulate genes of interest at any place or time during embryonic, larval, pupal or adult life, and while flies are behaving; (c) the growth of the relatively new field of optogenetics mak ...
Experience-Dependent Sharpening of Visual Shape Selectivity in
... This was followed by a 1500- to 2500-ms intertrial interval during which fixation was not required. The sequence of stimuli was determined pseudorandomly. Monkeys typically performed more than 10 correct repetitions for each unique stimulus. During neurophysiological recordings, we used 18 cat and do ...
... This was followed by a 1500- to 2500-ms intertrial interval during which fixation was not required. The sequence of stimuli was determined pseudorandomly. Monkeys typically performed more than 10 correct repetitions for each unique stimulus. During neurophysiological recordings, we used 18 cat and do ...
Pierre Berthet Computational Modeling of the Basal Ganglia – Functional Pathways
... We perceive the environment via sensor arrays and interact with it through motor outputs. The work of this thesis concerns how the brain selects actions given the information about the perceived state of the world and how it learns and adapts these selections to changes in this environment. This lea ...
... We perceive the environment via sensor arrays and interact with it through motor outputs. The work of this thesis concerns how the brain selects actions given the information about the perceived state of the world and how it learns and adapts these selections to changes in this environment. This lea ...
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... Recently, interest has grown in how the habenula, a poorly understood nucleus providing descending inputs to the tegmentum and raphe, may affect these behavioral states. We have used mouse genetic models to study part of this system, the dorsal medial habenula (dMHb). Here we report that the dMHb is ...
... Recently, interest has grown in how the habenula, a poorly understood nucleus providing descending inputs to the tegmentum and raphe, may affect these behavioral states. We have used mouse genetic models to study part of this system, the dorsal medial habenula (dMHb). Here we report that the dMHb is ...
physiological plasticity in auditory cortex: rapid induction by learning
... and Diamond, in press), and wherever possible, are referenced in the text rather than repeated here. 2. Perspectives on Neuroplasticity Neuroplasticity has become a major focus in contemporary neurobiology. It is widely studied at several levels--subcellular, cellular, neuronal systems, behavioral-- ...
... and Diamond, in press), and wherever possible, are referenced in the text rather than repeated here. 2. Perspectives on Neuroplasticity Neuroplasticity has become a major focus in contemporary neurobiology. It is widely studied at several levels--subcellular, cellular, neuronal systems, behavioral-- ...
computational modeling of observational learning - FORTH-ICS
... our ability to learn during observation. Motor mental images include a representation of the body of the demonstrator, rather than just the consequences of its actions (Jeannerod, 1994), indicating that perception is embodied and modal. For this reason, motor imagery has bee ...
... our ability to learn during observation. Motor mental images include a representation of the body of the demonstrator, rather than just the consequences of its actions (Jeannerod, 1994), indicating that perception is embodied and modal. For this reason, motor imagery has bee ...
The amygdala: securing pleasure and avoiding pain
... In a complex, naturalistic environment, animals can enhance their chances of obtaining pleasure (i.e. motivationally relevant rewards like food and sex) and avoiding pain and danger by using pavlovian environmental cues to guide behavior. For example, for a rat, associating the smell of cat urine wi ...
... In a complex, naturalistic environment, animals can enhance their chances of obtaining pleasure (i.e. motivationally relevant rewards like food and sex) and avoiding pain and danger by using pavlovian environmental cues to guide behavior. For example, for a rat, associating the smell of cat urine wi ...
Jesús Pujol Martí Neural map organization and development in the lateral-line system
... functionally complex, mediating contrasting behaviours that are also present in the adult fish. A decade ago, Ghysen‟s research group showed that the lateralis (lateral-line) sensory neurons display a topographic neural map. The same group shed some light on when and how this map is established. Sin ...
... functionally complex, mediating contrasting behaviours that are also present in the adult fish. A decade ago, Ghysen‟s research group showed that the lateralis (lateral-line) sensory neurons display a topographic neural map. The same group shed some light on when and how this map is established. Sin ...
optical multistage interconnection networks
... Artificial neural networks have been studied for many years in the hope of achieving human – like performance in the fields of speech and image recognition. These networks composed of many nonlinear computational elements operating in parallel and arranged in patterns reminiscent of biological neur ...
... Artificial neural networks have been studied for many years in the hope of achieving human – like performance in the fields of speech and image recognition. These networks composed of many nonlinear computational elements operating in parallel and arranged in patterns reminiscent of biological neur ...
Modulation of Behavior by Expected Reward Magnitude Depends
... Abstract Reward-predictive cues are important to guide behavioral responding. In a series of experiments, we sought to characterize the role of dopamine in the dorsomedial striatum in modulation of reward-directed responding by visual cues. Different groups of rats subjected to infusion of 6-hydroxy ...
... Abstract Reward-predictive cues are important to guide behavioral responding. In a series of experiments, we sought to characterize the role of dopamine in the dorsomedial striatum in modulation of reward-directed responding by visual cues. Different groups of rats subjected to infusion of 6-hydroxy ...
Background - Harvard University
... of all the studies done. We focus on the activity of single neurons studied by neurophysiological techniques in behaving animals, in particular monkeys, and emphasize the formative role of behavioral theories, such as animal learning theory and microeconomic utility theory, on the understanding of t ...
... of all the studies done. We focus on the activity of single neurons studied by neurophysiological techniques in behaving animals, in particular monkeys, and emphasize the formative role of behavioral theories, such as animal learning theory and microeconomic utility theory, on the understanding of t ...
Rationalizing Context-Dependent Preferences: Divisive
... The question of whether stochastic choice behaviour can be rationalized, and how such behaviour depends on the choice set, has long been of interest in economics. Block and Marschak (1960) first laid out a necessary regularity condition for the existence of a random utility representation, under whi ...
... The question of whether stochastic choice behaviour can be rationalized, and how such behaviour depends on the choice set, has long been of interest in economics. Block and Marschak (1960) first laid out a necessary regularity condition for the existence of a random utility representation, under whi ...
compound action potential: nerve conduction
... When an action potential is produced in a neuron it is propagated away from the location where it was initially produced. This motion is produced by the change in open/closed properties of ion channels in the excitable membrane. To produce the action potential, a stimulus must open sodium channels ( ...
... When an action potential is produced in a neuron it is propagated away from the location where it was initially produced. This motion is produced by the change in open/closed properties of ion channels in the excitable membrane. To produce the action potential, a stimulus must open sodium channels ( ...
Gap Junctions in the Ventral Hippocampal-Medial
... remaining distance during microinfusion. Surgical screws were inserted in the skull around the guide cannula, and the cannula (26 gauge, 5 mm pedestal, 3 mm tubing length; Plastics One) was lowered into place. Dental acrylic was applied to stabilize and seal the wound, and dummy caps (Plastics One) ...
... remaining distance during microinfusion. Surgical screws were inserted in the skull around the guide cannula, and the cannula (26 gauge, 5 mm pedestal, 3 mm tubing length; Plastics One) was lowered into place. Dental acrylic was applied to stabilize and seal the wound, and dummy caps (Plastics One) ...
Selective amplification of the S
... Experiments were performed using two different sets of stimulus contrasts and repeated for two temporal conditions (2 and 8 Hz). In the first contrast set, stimuli were presented at similar cone contrasts in order to match stimuli in terms of their respective cone responses. Due to differences in con ...
... Experiments were performed using two different sets of stimulus contrasts and repeated for two temporal conditions (2 and 8 Hz). In the first contrast set, stimuli were presented at similar cone contrasts in order to match stimuli in terms of their respective cone responses. Due to differences in con ...
Reward and Aversion
... neuromodulatory systems and neural circuits involved in reward (Wise 2004). Enormous advances have since been made in understanding the neural mechanisms underlying reward and aversion. It is now understood that reward is not a unitary process but contains several psychological components: liking (p ...
... neuromodulatory systems and neural circuits involved in reward (Wise 2004). Enormous advances have since been made in understanding the neural mechanisms underlying reward and aversion. It is now understood that reward is not a unitary process but contains several psychological components: liking (p ...
Color responses of the human lateral geniculate nucleus: selective
... Experiments were performed using two different sets of stimulus contrasts and repeated for two temporal conditions (2 and 8 Hz). In the first contrast set, stimuli were presented at similar cone contrasts in order to match stimuli in terms of their respective cone responses. Due to differences in con ...
... Experiments were performed using two different sets of stimulus contrasts and repeated for two temporal conditions (2 and 8 Hz). In the first contrast set, stimuli were presented at similar cone contrasts in order to match stimuli in terms of their respective cone responses. Due to differences in con ...
Neuroethology
Neuroethology is the evolutionary and comparative approach to the study of animal behavior and its underlying mechanistic control by the nervous system. This interdisciplinary branch of behavioral neuroscience endeavors to understand how the central nervous system translates biologically relevant stimuli into natural behavior. For example, many bats are capable of echolocation which is used for prey capture and navigation. The auditory system of bats is often cited as an example for how acoustic properties of sounds can be converted into a sensory map of behaviorally relevant features of sounds. Neuroethologists hope to uncover general principles of the nervous system from the study of animals with exaggerated or specialized behaviors.As its name implies, neuroethology is a multidisciplinary field composed of neurobiology (the study of the nervous system) and ethology (the study of behavior in natural conditions). A central theme of the field of neuroethology, delineating it from other branches of neuroscience, is this focus on natural behavior. Natural behaviors may be thought of as those behaviors generated through means of natural selection (i.e. finding mates, navigation, locomotion, predator avoidance) rather than behaviors in disease states, or behavioral tasks that are particular to the laboratory.