Computational physics: Neural networks
... mann Machines [9]. We will study important properties of such networks such as transients, equilibrium, ergodicity and periodicity in section 2.3. An exact description of transient and stationary behavior for stochastic neural networks is not possible in general. In some special cases, however, one ...
... mann Machines [9]. We will study important properties of such networks such as transients, equilibrium, ergodicity and periodicity in section 2.3. An exact description of transient and stationary behavior for stochastic neural networks is not possible in general. In some special cases, however, one ...
Catastrophic Forgetting in Connectionist Networks: Causes
... receptive fields at each node is increased, thereby making each representation more distributed and causing greater overlap among representations, the amount of interference among representations does increases. In other words, if the receptive field of the an input becomes restricted enough, the AL ...
... receptive fields at each node is increased, thereby making each representation more distributed and causing greater overlap among representations, the amount of interference among representations does increases. In other words, if the receptive field of the an input becomes restricted enough, the AL ...
Running Improves Pattern Separation during Novel Object
... Abstract. Running increases adult neurogenesis and improves pattern separation in various memory tasks including context fear conditioning or touch-screen based spatial learning. However, it is unknown whether pattern separation is improved in spontaneous behavior, not emotionally biased by positive ...
... Abstract. Running increases adult neurogenesis and improves pattern separation in various memory tasks including context fear conditioning or touch-screen based spatial learning. However, it is unknown whether pattern separation is improved in spontaneous behavior, not emotionally biased by positive ...
Life and Death of Neurons in the Aging Brain
... much more powerful predictor of total neocortical neuron number than age, and although the authors found a 10% decrease in neurons across the age spectrum, they warn that, given the study design, this small but significant decline across ages should not be interpreted as strong evidence for biologic ...
... much more powerful predictor of total neocortical neuron number than age, and although the authors found a 10% decrease in neurons across the age spectrum, they warn that, given the study design, this small but significant decline across ages should not be interpreted as strong evidence for biologic ...
C ontribution of the anterior cingulate cortex to laser
... The emotional component of nociception is seldom distinguished from pain behavioral testing. The aim of the present study was to develop a behavioral test that indicates the emotional pain responses using the classical conditioning paradigm. The role of the anterior cingulate cortex (ACC) in the pro ...
... The emotional component of nociception is seldom distinguished from pain behavioral testing. The aim of the present study was to develop a behavioral test that indicates the emotional pain responses using the classical conditioning paradigm. The role of the anterior cingulate cortex (ACC) in the pro ...
Representing the Hyphen in Action–Effect
... Thus, close temporal proximity is considered a necessary condition for learning (Dickinson, 2001). However, in everyday life, people are often confronted with situations in which effects follow an action after considerable delays. For instance, when opening a hyperlink in a Web browser, the intended ...
... Thus, close temporal proximity is considered a necessary condition for learning (Dickinson, 2001). However, in everyday life, people are often confronted with situations in which effects follow an action after considerable delays. For instance, when opening a hyperlink in a Web browser, the intended ...
Consciousness & Its Variants
... 2. Pseudomemories – hypnosis can greatly increase confidence in false memories 3. Hypermnesia – claims have been made that hypnosis can improve memory ...
... 2. Pseudomemories – hypnosis can greatly increase confidence in false memories 3. Hypermnesia – claims have been made that hypnosis can improve memory ...
State-Dependent Computation Using Coupled Recurrent Networks
... Although conditional branching between possible behavioral states is a hallmark of intelligent behavior, very little is known about the neuronal mechanisms that support this processing. In a step toward solving this problem, we demonstrate by theoretical analysis and simulation how networks of richl ...
... Although conditional branching between possible behavioral states is a hallmark of intelligent behavior, very little is known about the neuronal mechanisms that support this processing. In a step toward solving this problem, we demonstrate by theoretical analysis and simulation how networks of richl ...
The contribution of sleep to hippocampus
... (or both) occurred after acquisition of procedural tasks requiring implicit visuo-motor adaptation and cognitive skills [8,37]. Again, this SWS–REM sleep dichotomy does not fit all findings. Regional increases in slow-wave activity were observed following acquisition of a procedural rotation adaptat ...
... (or both) occurred after acquisition of procedural tasks requiring implicit visuo-motor adaptation and cognitive skills [8,37]. Again, this SWS–REM sleep dichotomy does not fit all findings. Regional increases in slow-wave activity were observed following acquisition of a procedural rotation adaptat ...
Behavioral flexibility is increased by optogenetic inhibition of
... genetic inhibition by turning on the LED during specific time of errors (lose–shift percentages). We also analyzed the number segments (Fig. 3A). In the REWARD condition, the LED was turned of times the animal received a reward for pressing one lever and on by a correct lever press and stayed on unt ...
... genetic inhibition by turning on the LED during specific time of errors (lose–shift percentages). We also analyzed the number segments (Fig. 3A). In the REWARD condition, the LED was turned of times the animal received a reward for pressing one lever and on by a correct lever press and stayed on unt ...
Annual Pavlovian Society Meeting ~ Sept 1820, 2014 Hilton Seattle
... Early adversity, stress response, hippocampal development and risks of psychiatric diseases ~ A larger hippocampus has been associated with healthy cognition in normal aging and with a reduced risk of numerous neurological and psychiatric disorders such as Alzheimer’s disease, Schizophrenia, Post-Tr ...
... Early adversity, stress response, hippocampal development and risks of psychiatric diseases ~ A larger hippocampus has been associated with healthy cognition in normal aging and with a reduced risk of numerous neurological and psychiatric disorders such as Alzheimer’s disease, Schizophrenia, Post-Tr ...
PSYCHOLOGY (8th Edition) David Myers
... Alcohol affects motor skills, judgment, and memory and increases aggressiveness while reducing self awareness (GABA) Barbiturates depress the activity of the CNS, reducing anxiety but impairing memory and judgment. (Nembutal, Seconal, Amytal) Opiates Opium and its derivatives (morphine and heroin) d ...
... Alcohol affects motor skills, judgment, and memory and increases aggressiveness while reducing self awareness (GABA) Barbiturates depress the activity of the CNS, reducing anxiety but impairing memory and judgment. (Nembutal, Seconal, Amytal) Opiates Opium and its derivatives (morphine and heroin) d ...
Amygdala-Prefrontal Synchronization Underlies Resistance to
... (A) Experimental design: there were two types of sessions (intermingled across the recording period), either continuous reinforcement (ConS) or partial reinforcement (ParS) schedule. Both schedules reach behavioral plateau within a few trials and maintain it for over 25 trials, resulting in a contro ...
... (A) Experimental design: there were two types of sessions (intermingled across the recording period), either continuous reinforcement (ConS) or partial reinforcement (ParS) schedule. Both schedules reach behavioral plateau within a few trials and maintain it for over 25 trials, resulting in a contro ...
PREFRONTAL AND MEDIAL TEMPORAL LOBE INTERACTIONS IN
... effects of hippocampal or fornix lesions on recognition15,22,23 whereas other researchers have reported deficits13,24. The importance of the perirhinal cortex for familiarity-based memory is less controversial. Electrophysiological studies have found perirhinal neurons that show diminished responses ...
... effects of hippocampal or fornix lesions on recognition15,22,23 whereas other researchers have reported deficits13,24. The importance of the perirhinal cortex for familiarity-based memory is less controversial. Electrophysiological studies have found perirhinal neurons that show diminished responses ...
(2003). Prefrontal and medial temporal lobe interactions in
... effects of hippocampal or fornix lesions on recognition15,22,23 whereas other researchers have reported deficits13,24. The importance of the perirhinal cortex for familiarity-based memory is less controversial. Electrophysiological studies have found perirhinal neurons that show diminished responses ...
... effects of hippocampal or fornix lesions on recognition15,22,23 whereas other researchers have reported deficits13,24. The importance of the perirhinal cortex for familiarity-based memory is less controversial. Electrophysiological studies have found perirhinal neurons that show diminished responses ...
Components of Decision-Making
... (How we know: Oprm-/- mice did not undergo behavioral changes with treatment) ...
... (How we know: Oprm-/- mice did not undergo behavioral changes with treatment) ...
Enhanced cholinergic suppression of previously strengthened synapses enables the formation of
... structures. In particular, acetylcholine may regulate the dynamics of encoding and retrieval of information by regulating the magnitude of synaptic transmission at excitatory recurrent connections. Many abstract models of associative memory function ignore the influence of changes in synaptic strengt ...
... structures. In particular, acetylcholine may regulate the dynamics of encoding and retrieval of information by regulating the magnitude of synaptic transmission at excitatory recurrent connections. Many abstract models of associative memory function ignore the influence of changes in synaptic strengt ...
remembering familiar people: the posterior cingulate cortex and
... of the functional state of this region in patients with early AD or at risk for that condition. The current study uses fMRI to examine the individual patterns of brain activation associated with successful autobiographical memory retrieval in eight normal subjects. ...
... of the functional state of this region in patients with early AD or at risk for that condition. The current study uses fMRI to examine the individual patterns of brain activation associated with successful autobiographical memory retrieval in eight normal subjects. ...
Dopamine and adaptive memory - Shohamy Lab
... of rewards and goal-directed behaviors: prototypical paradigms for testing hippocampal memories in animals are remembering where in a maze or underneath which object a food reward can be found. In such situations, neurons in the hippocampus respond to the received reward, and not only to the locatio ...
... of rewards and goal-directed behaviors: prototypical paradigms for testing hippocampal memories in animals are remembering where in a maze or underneath which object a food reward can be found. In such situations, neurons in the hippocampus respond to the received reward, and not only to the locatio ...
Energy balance
... Now, back to caffeine. • Caffeine binds to the receptors for adenosine, but has no effect on the receptors. • When caffeine is bound, adenosine can’t bind. Adenosine Caffeine ...
... Now, back to caffeine. • Caffeine binds to the receptors for adenosine, but has no effect on the receptors. • When caffeine is bound, adenosine can’t bind. Adenosine Caffeine ...
Brain oscillations in perception and memory
... Gamma oscillations, now widely regarded as functionally relevant signals of the brain, illustrate that the concept of event-related oscillations bridges the gap between single neurons and neural assemblies. Taking this concept further, we review experiments showing that oscillatory phenomena such as ...
... Gamma oscillations, now widely regarded as functionally relevant signals of the brain, illustrate that the concept of event-related oscillations bridges the gap between single neurons and neural assemblies. Taking this concept further, we review experiments showing that oscillatory phenomena such as ...
State-dependent and cell type-specific temporal processing in
... state, the reduction in onset response variability in both AC and MGB was accompanied by cell typespecific firing, with decreased responses of cortical broad spiking cells, but increased responses of cortical narrow spiking cells. This onset response was followed by distinct temporal evolution in AC ...
... state, the reduction in onset response variability in both AC and MGB was accompanied by cell typespecific firing, with decreased responses of cortical broad spiking cells, but increased responses of cortical narrow spiking cells. This onset response was followed by distinct temporal evolution in AC ...
Alcoholism - Boston University Medical Campus
... were similar with respect to IQ, memory scores, and education and did not differ on depression or anxiety measures. However, there was a trend toward the control subject group being older than the alcoholic subjects (p = 0.06). The participants were native English speakers, with comparable socioecon ...
... were similar with respect to IQ, memory scores, and education and did not differ on depression or anxiety measures. However, there was a trend toward the control subject group being older than the alcoholic subjects (p = 0.06). The participants were native English speakers, with comparable socioecon ...
Properties of spike train spectra in two parietal reach areas
... that was spatially tuned. Many single cell PRR spectra exhibited spatially tuned temporal structure, as evidenced by a significant and spatially tuned peak in the 20–50 Hz band. The PRR population spectrum of spike trains was also tuned, with the peak power centered on approximately 25 Hz. In contra ...
... that was spatially tuned. Many single cell PRR spectra exhibited spatially tuned temporal structure, as evidenced by a significant and spatially tuned peak in the 20–50 Hz band. The PRR population spectrum of spike trains was also tuned, with the peak power centered on approximately 25 Hz. In contra ...
Associative learning signals in the brain
... (O’Keefe and Nadel, 1978), more recent theories have suggested that spatial information is one particularly striking example of a more general category of relational information that is highly dependent on the hippocampus (Eichenbaum and Cohen, 2001). Early studies done by Wilson and Mcnaughton (199 ...
... (O’Keefe and Nadel, 1978), more recent theories have suggested that spatial information is one particularly striking example of a more general category of relational information that is highly dependent on the hippocampus (Eichenbaum and Cohen, 2001). Early studies done by Wilson and Mcnaughton (199 ...