The Experts below are selected from a list of 24 Experts worldwide ranked by ideXlab platform

A A Korneev - One of the best experts on this subject based on the ideXlab platform.

  • Delayed Copying of Unfamiliar Outline Images: Does the Decrease in Reaction Time with the Increase in the Delay Reflect a Change in the Internal Representation of the Forthcoming Movement?
    Neuroscience and Behavioral Physiology, 2017
    Co-Authors: A A Korneev, D I Lomakin, A. V. Kurganskii
    Abstract:

    A group of 24 adult subjects performed a task consisting of delayed motor Reproduction (Copying) of unfamiliar outline figures (trajectory templates). Templates were presented for 250 msec and were reproduced in response to an instruction given by sound signal (a brief click), delayed relative to the end of the period of presentation of the trajectory image by time T = 0, 500, 1000, 2000, or 4000 msec. Subjects performed the task in a block experiment in which the delay T was constant within each block of 32 trials. Reaction time ( RT ) was analyzed, along with the mean duration of movement along one segment of the trajectory ( MT ) and the duration of the pause between adjacent segments ( DT ). Reaction time RT was found to show a non-monotonic dependence on delay T , decreasing at T ≤ 1000 msec and increasing at T ≤ 2000 msec. The relationship between RT and T was adequately described by a very simple additive model – the sum of a linearly increasing component and an exponentially decreasing component. The linear increase reflected a decrease in the accuracy of predicting the moment at which the instruction signal would be presented as the delay T increased (foreperiod effect [Niemi and Näätänen, 1981; Meulenbroek and Van Galen, 1988]). The exponentially decreasing component is suggested to reflect transformation of the internal representation of the trajectory template during the period it is held in short-term memory.

  • Delayed Copying of Unfamiliar Contour Shapes: Does Reaction Time Decrease with Growing Delay Reflect a Change in Internal Representation Of Fothcoming Movement?
    Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 2016
    Co-Authors: A A Korneev, D I Lomakin, A V Kurgansky
    Abstract:

    Group of 24 adults has performed the delayed Reproduction (Copying) of unfamiliar contour shapes (trajectory templates). Templates were shown for 250 ms and the participants were asked to reproduce them upon detecting acoustical go signal (short click). Go signal was delayed relatively to the end of a visual template exposure by T = 0, 500, 1000, 2000 or 4000 ms. Block design of the experiment was used when delay T was held constant within a block consisted of 32 trials. We analyzed reaction time (RT), mean movement time (MT) along a single segment of trajectory, and the mean dwell time (DT) in the vertices of the template. It is shown that RT does not depend monotonically on the delay T showing a decrease at T ≤ 1000 ms and increase at T ≤ 2000 ms. The RT of T curve is well described by a simple additive model that includes a linearly growing and an exponentially decaying terms. The linear growth reflects the foreperiod effect, i.e., decreasing capacity to predict an exact moment of go signal with the growing delay T [Niemi, Naatanen, 1981; Meulenbroek, Van Galen, 1988]. We suggested that exponentially decaying term may be caused by the internal representation of a trajectory undergoing some transformation during retention in the working memory.

A. V. Kurganskii - One of the best experts on this subject based on the ideXlab platform.

  • Delayed Copying of Unfamiliar Outline Images: Does the Decrease in Reaction Time with the Increase in the Delay Reflect a Change in the Internal Representation of the Forthcoming Movement?
    Neuroscience and Behavioral Physiology, 2017
    Co-Authors: A A Korneev, D I Lomakin, A. V. Kurganskii
    Abstract:

    A group of 24 adult subjects performed a task consisting of delayed motor Reproduction (Copying) of unfamiliar outline figures (trajectory templates). Templates were presented for 250 msec and were reproduced in response to an instruction given by sound signal (a brief click), delayed relative to the end of the period of presentation of the trajectory image by time T = 0, 500, 1000, 2000, or 4000 msec. Subjects performed the task in a block experiment in which the delay T was constant within each block of 32 trials. Reaction time ( RT ) was analyzed, along with the mean duration of movement along one segment of the trajectory ( MT ) and the duration of the pause between adjacent segments ( DT ). Reaction time RT was found to show a non-monotonic dependence on delay T , decreasing at T ≤ 1000 msec and increasing at T ≤ 2000 msec. The relationship between RT and T was adequately described by a very simple additive model – the sum of a linearly increasing component and an exponentially decreasing component. The linear increase reflected a decrease in the accuracy of predicting the moment at which the instruction signal would be presented as the delay T increased (foreperiod effect [Niemi and Näätänen, 1981; Meulenbroek and Van Galen, 1988]). The exponentially decreasing component is suggested to reflect transformation of the internal representation of the trajectory template during the period it is held in short-term memory.

D I Lomakin - One of the best experts on this subject based on the ideXlab platform.

  • Delayed Copying of Unfamiliar Outline Images: Does the Decrease in Reaction Time with the Increase in the Delay Reflect a Change in the Internal Representation of the Forthcoming Movement?
    Neuroscience and Behavioral Physiology, 2017
    Co-Authors: A A Korneev, D I Lomakin, A. V. Kurganskii
    Abstract:

    A group of 24 adult subjects performed a task consisting of delayed motor Reproduction (Copying) of unfamiliar outline figures (trajectory templates). Templates were presented for 250 msec and were reproduced in response to an instruction given by sound signal (a brief click), delayed relative to the end of the period of presentation of the trajectory image by time T = 0, 500, 1000, 2000, or 4000 msec. Subjects performed the task in a block experiment in which the delay T was constant within each block of 32 trials. Reaction time ( RT ) was analyzed, along with the mean duration of movement along one segment of the trajectory ( MT ) and the duration of the pause between adjacent segments ( DT ). Reaction time RT was found to show a non-monotonic dependence on delay T , decreasing at T ≤ 1000 msec and increasing at T ≤ 2000 msec. The relationship between RT and T was adequately described by a very simple additive model – the sum of a linearly increasing component and an exponentially decreasing component. The linear increase reflected a decrease in the accuracy of predicting the moment at which the instruction signal would be presented as the delay T increased (foreperiod effect [Niemi and Näätänen, 1981; Meulenbroek and Van Galen, 1988]). The exponentially decreasing component is suggested to reflect transformation of the internal representation of the trajectory template during the period it is held in short-term memory.

  • Delayed Copying of Unfamiliar Contour Shapes: Does Reaction Time Decrease with Growing Delay Reflect a Change in Internal Representation Of Fothcoming Movement?
    Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 2016
    Co-Authors: A A Korneev, D I Lomakin, A V Kurgansky
    Abstract:

    Group of 24 adults has performed the delayed Reproduction (Copying) of unfamiliar contour shapes (trajectory templates). Templates were shown for 250 ms and the participants were asked to reproduce them upon detecting acoustical go signal (short click). Go signal was delayed relatively to the end of a visual template exposure by T = 0, 500, 1000, 2000 or 4000 ms. Block design of the experiment was used when delay T was held constant within a block consisted of 32 trials. We analyzed reaction time (RT), mean movement time (MT) along a single segment of trajectory, and the mean dwell time (DT) in the vertices of the template. It is shown that RT does not depend monotonically on the delay T showing a decrease at T ≤ 1000 ms and increase at T ≤ 2000 ms. The RT of T curve is well described by a simple additive model that includes a linearly growing and an exponentially decaying terms. The linear growth reflects the foreperiod effect, i.e., decreasing capacity to predict an exact moment of go signal with the growing delay T [Niemi, Naatanen, 1981; Meulenbroek, Van Galen, 1988]. We suggested that exponentially decaying term may be caused by the internal representation of a trajectory undergoing some transformation during retention in the working memory.

A V Kurgansky - One of the best experts on this subject based on the ideXlab platform.

  • Delayed Copying of Unfamiliar Contour Shapes: Does Reaction Time Decrease with Growing Delay Reflect a Change in Internal Representation Of Fothcoming Movement?
    Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova, 2016
    Co-Authors: A A Korneev, D I Lomakin, A V Kurgansky
    Abstract:

    Group of 24 adults has performed the delayed Reproduction (Copying) of unfamiliar contour shapes (trajectory templates). Templates were shown for 250 ms and the participants were asked to reproduce them upon detecting acoustical go signal (short click). Go signal was delayed relatively to the end of a visual template exposure by T = 0, 500, 1000, 2000 or 4000 ms. Block design of the experiment was used when delay T was held constant within a block consisted of 32 trials. We analyzed reaction time (RT), mean movement time (MT) along a single segment of trajectory, and the mean dwell time (DT) in the vertices of the template. It is shown that RT does not depend monotonically on the delay T showing a decrease at T ≤ 1000 ms and increase at T ≤ 2000 ms. The RT of T curve is well described by a simple additive model that includes a linearly growing and an exponentially decaying terms. The linear growth reflects the foreperiod effect, i.e., decreasing capacity to predict an exact moment of go signal with the growing delay T [Niemi, Naatanen, 1981; Meulenbroek, Van Galen, 1988]. We suggested that exponentially decaying term may be caused by the internal representation of a trajectory undergoing some transformation during retention in the working memory.

Ece Baban - One of the best experts on this subject based on the ideXlab platform.

  • THE EFFECTS OF KNOWLEDGE ECONOMY ON THE COSTS AND COST COMPARISON OF TRADITIONAL AND DIGITAL GOODS
    International journal of social sciences, 2011
    Co-Authors: Tolga Kara, Ece Baban
    Abstract:

    In traditional economics, the cost of production decreases as the production rate increases (scale economics is valid). After a certain level average cost begins to increase again (scale diseconomies) In other words; as the production increases, after a certain level the cost increases gradually. On the contrary, in Knowledge Economics cost decreases gradually as the production increases. Decreasing cost style is one of the most important features of new sector which is formed by Information technologies. The structure of cost in digital goods and services production differs from the traditional production. Producing digital products goods generally require great deal of investment at the beginning. Those investments can be named as “sunk cost”. By this it is meant that, after giving up the investment it is not possible to get the invested money by selling the goods or by other ways. However, once the digital goods are produced their Reproduction (Copying) is low cost. Consequently, in the production of digital goods as the productions increases, the marginal and average cost decrease and income increases. In production of these types of goods the cost of developing them is important but afterwards cost of Copying them or introducing a similar one to the market is so low. Therefore marginal cost is not only low but also equal to zero. In this research mainly the changes in the cost of digital goods and services are examined, however the effects of knowledge on the costs of production of goods and services will be mentioned too