Abstract：
:Maintenance of movement accuracy relies on motor learning, by which prior errors guide future behavior. One aspect of this learning process involves the accurate generation of predictions of movement outcome. These predictions can, for example, drive anticipatory movements during a predictive-saccade task. Predictive saccades are rapid eye movements made to anticipated future targets based on error information from prior movements. This predictive process exhibits long-memory (fractal) behavior, as suggested by inter-trial fluctuations. Here, we model this learning process using a regime-switching approach, which avoids the computational complexities associated with true long-memory processes. The resulting model demonstrates two fundamental characteristics. First, long-memory behavior can be mimicked by a system possessing no true long-term memory, producing model outputs consistent with human-subjects performance. In contrast, the popular two-state model, which is frequently used in motor learning, cannot replicate these findings. Second, our model suggests that apparent long-term memory arises from the trade-off between correcting for the most recent movement error and maintaining consistent long-term behavior. Thus, the model surprisingly predicts that stronger long-memory behavior correlates to faster learning during adaptation (in which systematic errors drive large behavioral changes); greater apparent long-term memory indicates more effective incorporation of error from the cumulative history across trials.
journal_name
Ann Biomed Engjournal_title
Annals of biomedical engineeringauthors
Wong AL,Shelhamer Mdoi
10.1007/s10439-012-0669-2subject
Has Abstractpub_date
2013-08-01 00:00:00pages
1613-24issue
8eissn
0090-6964issn
1573-9686journal_volume
41pub_type
杂志文章abstract：:Normalized maximal ventricular power (nPWRmax) is an index of cardiac function which measures the innate blood pumping ability, or contractility, of the left ventricle (LV), and its noninvasive assessment could prove useful in a variety of patients. nPWRmax is defined as the maximum instantaneous product of LV pressur...
journal_title：Annals of biomedical engineering
pub_type： 临床试验,杂志文章
doi：10.1114/1.1415530
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abstract：:Asymmetric 75% and 95% area reduction, transparent Sylgard stenotic models were operated under internal carotid artery (ICA) [Womersley parameter, alpha=5.36, Re(mean) =213 and 180, respectively, and Re(peak)=734 and 410, respectively] and left anterior descending coronary artery (LAD) flow wave forms (alpha=2.65, Re(...
journal_title：Annals of biomedical engineering
pub_type： 杂志文章
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abstract：:The aim of this study was to establish in vitro bench-tests of left atrial appendage occlusion (LAAo) devices regarding tug force, radial force and sealing capacity. Two LAAo devices, namely the WATCHMAN™ and the Occlutech®, of three different sizes underwent testing in novel dedicated in vitro setups. Radial force wa...
journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-018-2057-z
更新日期：2018-09-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/BF02667357
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-013-0915-2
更新日期：2014-03-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-016-1579-5
更新日期：2016-09-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1023/b:abme.0000019176.49650.19
更新日期：2004-04-01 00:00:00
abstract：:The aim of this study was to develop an empirical model of parameter-based gait data, based on an artificial neural network and a genetic algorithm, for the assessment of patients after ankle arthrodesis. Ground reaction force vectors were measured by force platforms during level walking. Nine force parameters express...
journal_title：Annals of biomedical engineering
pub_type： 临床试验,杂志文章
doi：10.1114/1.1342053
更新日期：2001-01-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-017-1964-8
更新日期：2018-02-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/BF02584215
更新日期：1983-01-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-009-9851-6
更新日期：2010-02-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 临床试验,杂志文章
doi：10.1114/1.1481051
更新日期：2002-05-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10439-013-0834-2
更新日期：2013-08-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1114/1.191
更新日期：1999-07-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1023/b:abme.0000017553.01798.12
更新日期：2004-03-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-011-0386-2
更新日期：2012-01-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-012-0590-8
更新日期：2012-10-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
doi：10.1007/s10439-004-7820-7
更新日期：2004-12-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
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journal_title：Annals of biomedical engineering
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更新日期：2021-01-01 00:00:00
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journal_title：Annals of biomedical engineering
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journal_title：Annals of biomedical engineering
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doi：10.1007/s10439-010-0219-8
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journal_title：Annals of biomedical engineering
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journal_title：Annals of biomedical engineering
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journal_title：Annals of biomedical engineering
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
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更新日期：2018-10-01 00:00:00
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journal_title：Annals of biomedical engineering
pub_type： 杂志文章
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