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Cumming BG, Parker AJ.
Cumming BG, Parker AJ.

... It would have been possible to manipulate the relative disparity between the foreground and background of the RDS simply by changing the disparity of the background region. However, in such an experiment, the absence of an effect of relative disparity would be hard to interpret. It is always possibl ...
Classical Conditioning Analog Enhanced Acetylcholine Responses
Classical Conditioning Analog Enhanced Acetylcholine Responses

S-potentials precede and drive nearly all LGN spikes in a burst.
S-potentials precede and drive nearly all LGN spikes in a burst.

... nucleus (LGN) is often categorized into two modes: burst and tonic. The bursting mode has been shown in cats and guinea pigs to depend on activation of the low-threshold calcium current (IT). Characteristically, all spikes but the first one in a burst do not require additional synaptic input to occu ...
ASSOCIATIVE LEARNING IN ANTS: ODOR LEARNING VS. COLOR
ASSOCIATIVE LEARNING IN ANTS: ODOR LEARNING VS. COLOR

... with them. In addition, insects’ brains do not have the complexity of most vertebrates’ brains, thus making it easier to find out where in the brain the learning associations occur. One of the first well-documented classical conditioning experiments was performed on honeybees (Takeda, 1961). In thi ...
Functional Microarchitecture of Cat Primary Visual Cortex
Functional Microarchitecture of Cat Primary Visual Cortex

... The goal of this investigation was to quantify the differences and similarities in the responses to artificial and more complex stimuli of pairs or triplets of nearby neurons, which were situated in the same cortical “column” in cat primary visual cortex, and to relate the fingerprint of the neurons ...
Pavlov and Skinner: Two lives in science ( an introduction to B. F.
Pavlov and Skinner: Two lives in science ( an introduction to B. F.

Lateral Geniculate Nucleus (LGN)
Lateral Geniculate Nucleus (LGN)

... Measure sensitivity to all different orientation Adapt to one orientation Measure sensitivity to all different orientation again Find the change in the sensitivity ...
Self-Organizing Visual Cortex Model using Homeostatic Plasticity
Self-Organizing Visual Cortex Model using Homeostatic Plasticity

... chapter 17]. In current LISSOM model, activation thresholds (the upper and lower bound of neuron’s activation function) should be tuned manually by hand through trial and error. Besides time consuming for the modeler, this process also likely to be subjective. Comparison of experiment results under ...
Likes by Flavour–Flavour Learning
Likes by Flavour–Flavour Learning

... factors. Nonetheless, within the normal physiological boundaries of satiety and hunger one may argue that people simply eat what they like and avoid foods they do not like (Eertmans et al. 2001). Such hedonic eating behaviour is particularly apparent in children. For example, in the early twentieth ...
Shared and distinct retinal input to the mouse superior colliculus and
Shared and distinct retinal input to the mouse superior colliculus and

... pixels. Images were stitched together, when necessary and appropriate, via Zen software (Carl Zeiss) or custom routines written in MATLAB (The MathWorks). Labeled cells were counted manually using the FIJI cell counter plugin (NIH; http://fiji.sc/Fiji). Light stimuli and collection and analysis of e ...
6 basic principles of learning
6 basic principles of learning

... fuss that her mother gives in and buys her a lollipop. According to the principles of operant conditioning, what can be expected from this encounter? A) Angelica’s mom will be less likely to buy her a lollipop in the future. B) In the future, Angelica will probably whine and cry when she wants somet ...
Representation of Sounds in Auditory Cortex of Awake
Representation of Sounds in Auditory Cortex of Awake

... The brain is the most complex computational device known to Man. Not only does it mediate our orientation in both external (physical) and internal worlds, but—even more astonishingly—the brain enables study of itself. Yet, this amazing device is composed of only a limited set of neurons and their co ...
concurrent, distributed control of saccade initiation in the frontal eye
concurrent, distributed control of saccade initiation in the frontal eye

... of the movement is exceedingly unpredictable. Numerous experiments have measured the time that elapses from presentation of a visual stimulus until initiation of a saccade. Each experiment finds that this saccadic reaction time (SRT) ranges from rarely less than 100 ms to as much as 500 ms or more. ...
Shape Selectivity in Primate Frontal Eye Field
Shape Selectivity in Primate Frontal Eye Field

... conventional, straightforward experimental design used to study single cell responses in visual areas of the “what” pathway, we directly test, for the first time, sensitivity of FEF neurons to simple, 2-D shapes. We also present fMRI evidence using a variety of shape stimuli to provide information a ...
The effect of selective attention on auditory frequency
The effect of selective attention on auditory frequency

... the acoustical landscape, which is also important in the viewpoint of survival (Ashmore, 2008; Karjalainen, 2009; Rossing et al., 2002). ...
Selective attention through selective neuronal synchronization
Selective attention through selective neuronal synchronization

... Selective synchronization and selective attentional processing 1c). Consistent with this hypothesis, the interaction pattern of one neuronal group (A) with two other groups (B and C) can be predicted by their pattern of precise synchronization (Figure 1c). This has recently been demonstrated for in ...
Plastic Effect of Tetanic Stimulation on Auditory Evoked Potentials
Plastic Effect of Tetanic Stimulation on Auditory Evoked Potentials

... changes in the central nervous system in response to altered patterns of stimulation. In sensory and motor systems, demands for transmitting sensory or motor information within these systems can change when there (1) are altered patterns of stimulation (peripheral or central) and/or (2) is a loss of ...
Comprehensive Review of Golgi Staining Methods for Nervous Tissue
Comprehensive Review of Golgi Staining Methods for Nervous Tissue

... background, more modified and developed staining methods, such as Golgi–Cox, rapid Golgi, and Golgi–Kopsch staining, were invented and extensively used in research of various specimens (Maiti et al., 2015). Thus, there are approximately 3000 publications that used Golgi staining between 1965 and 199 ...
Sensors for impossible stimuli may solve the stereo correspondence
Sensors for impossible stimuli may solve the stereo correspondence

... produced by moving the receptive fields onto noncorresponding regions of the image is outweighed by a fortuitous increase in contrast energy. Thus, all we can deduce is that the stimulus disparity must be one of the values where the response of tuned-excitatory cells has a local turning point (Fig. ...
Document
Document

... it to the nervous system. • Nervous system responds to stimuli. – Pupils shrink when too much light enters the eyes. – Goose bumps when cold air touches skin. ...
Psychological Bulletin
Psychological Bulletin

... their readiness to conduct (252, 267), the rearousal of just-active pathways (44)—all these were suggested as possible mechanims mediating the action of satisfiers and annoyers. These physiological explanations can be called neither right nor wrong. They are clearly speculative and many steps remove ...
Same Spinal Interneurons Mediate Reflex Actions of Group Ib and
Same Spinal Interneurons Mediate Reflex Actions of Group Ib and

... might contribute to centrally initiated movements mediated by RS neurons. With respect to group II interneurons it has already been established that they are affected by commissural interneurons activated by contralateral group II afferents (Arya et al. 1991; Bajwa et al. 1992) but it remained unkno ...
Down - 서울대 : Biointelligence lab
Down - 서울대 : Biointelligence lab

... Self organizing network to reflect dimensionality of the feature space  Before learning, all nodes have equal weights with high dimensionality  After training, weights in the physical space of the nodes look random  After reordering the nodes so that strongly connected nodes are adjacent to each ...
Empathic choice involves vmPFC value signals that are modulated
Empathic choice involves vmPFC value signals that are modulated

... performed a similar task, except that now they made purchase decisions for themselves out of a $10 cash endowment that belonged to them. A randomly selected trial was again chosen, and the associated decision implemented at the conclusion of the two sessions. At the end of the second session, subjec ...
Nonlinear design in nanophotonics David Liu
Nonlinear design in nanophotonics David Liu

... dielectric materials within prescribed index bounds. In addition to the optimization, a key point is the identification of the correct boundary conditions to ensure reflectionless coupling to untransformed regions while allowing maximum flexibility in the optimization. We apply our technique to the ...
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Psychophysics

Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they affect. Psychophysics has been described as ""the scientific study of the relation between stimulus and sensation"" or, more completely, as ""the analysis of perceptual processes by studying the effect on a subject's experience or behaviour of systematically varying the properties of a stimulus along one or more physical dimensions"".Psychophysics also refers to a general class of methods that can be applied to study a perceptual system. Modern applications rely heavily on threshold measurement, ideal observer analysis, and signal detection theory.Psychophysics has widespread and important practical applications. For example, in the study of digital signal processing, psychophysics has informed the development of models and methods of lossy compression. These models explain why humans perceive very little loss of signal quality when audio and video signals are formatted using lossy compression.
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