W.L.J. Martens

809 total citations
17 papers, 646 citations indexed

About

W.L.J. Martens is a scholar working on Cognitive Neuroscience, Biomedical Engineering and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, W.L.J. Martens has authored 17 papers receiving a total of 646 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Cognitive Neuroscience, 6 papers in Biomedical Engineering and 4 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in W.L.J. Martens's work include Sleep and Wakefulness Research (5 papers), Sleep and related disorders (4 papers) and Non-Invasive Vital Sign Monitoring (4 papers). W.L.J. Martens is often cited by papers focused on Sleep and Wakefulness Research (5 papers), Sleep and related disorders (4 papers) and Non-Invasive Vital Sign Monitoring (4 papers). W.L.J. Martens collaborates with scholars based in Netherlands, Switzerland and Belgium. W.L.J. Martens's co-authors include Henk J. Stam, J.H.M. Tulen, Johannes B. Bussmann, Fabiënne C. Schasfoort, Rita J. G. van den Berg-Emons, J. P. C. de Weerd, Anna Wirz‐Justice, Vera Knoblauch, Christian Cajochen and Petrus H. Veltink and has published in prestigious journals such as SLEEP, European Journal of Neuroscience and Physical Therapy.

In The Last Decade

W.L.J. Martens

17 papers receiving 623 citations

Peers

W.L.J. Martens

ECP

CVPR

PTSTR

Matthias Weippert Germany

Chen‐Wen Yen Taiwan

Gye‐Rae Tack South Korea

Mark V. Albert United States

Hsiao‐Lung Chan Taiwan

Emer P. Doheny Ireland

Sofiane Ramdani France

Bob Cheung Canada

Marco Altini Netherlands

Lorcan Walsh Ireland

Matthias Weippert Germany

W.L.J. Martens

194 ×0.9

413 ×2.8

226 ×2.0

ECP

39 ×0.4

CVPR

46 ×0.5

PTSTR

Citations per year, relative to W.L.J. Martens W.L.J. Martens (= 1×) peers Matthias Weippert

Countries citing papers authored by W.L.J. Martens

Since Specialization

Citations

This map shows the geographic impact of W.L.J. Martens's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by W.L.J. Martens with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites W.L.J. Martens more than expected).

Fields of papers citing papers by W.L.J. Martens

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by W.L.J. Martens. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by W.L.J. Martens. The network helps show where W.L.J. Martens may publish in the future.

Co-authorship network of co-authors of W.L.J. Martens

This figure shows the co-authorship network connecting the top 25 collaborators of W.L.J. Martens. A scholar is included among the top collaborators of W.L.J. Martens based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with W.L.J. Martens. W.L.J. Martens is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

17 of 17 papers shown

Martens, W.L.J., et al.. (2006). Objective measurement of upper limb activity and mobility during everyday behavior using ambulatory accelerometry: The upper limb activity monitor. Behavior Research Methods. 38(3). 439–446. 14 indexed citations

Knoblauch, Vera, Mirjam Münch, Katharina Blatter, et al.. (2005). Age-Related Changes in the Circadian Modulation of Sleep-Spindle Frequency During Nap Sleep. SLEEP. 28(9). 1093–1101. 44 indexed citations

Veltink, Petrus H., et al.. (2005). The feasibility of posture and movement detection by accelerometry. EUR Research Repository (Erasmus University Rotterdam). 1230–1231. 16 indexed citations

Steenis, H.G. van, W.L.J. Martens, & J.H.M. Tulen. (2004). Quantification of the dynamic behavior over time of narrow-band components present in heart rate variability by means of the instantaneous amplitude and frequency. Computers in Biology and Medicine. 35(3). 197–215. 1 indexed citations

Knoblauch, Vera, W.L.J. Martens, Anna Wirz‐Justice, & Christian Cajochen. (2003). Human sleep spindle characteristics after sleep deprivation. Clinical Neurophysiology. 114(12). 2258–2267. 67 indexed citations

Knoblauch, Vera, W.L.J. Martens, Anna Wirz‐Justice, Kurt Kräuchi, & Christian Cajochen. (2003). Regional differences in the circadian modulation of human sleep spindle characteristics. European Journal of Neuroscience. 18(1). 155–163. 34 indexed citations

Martens, W.L.J.. (2003). Segmentation of 'rhythmic' and 'noisy' components of sleep EEG, heart rate and respiratory signals based on instantaneous amplitude, frequency, bandwidth and phase. 2. 959–959. 3 indexed citations

Steenis, H.G. van, W.L.J. Martens, & J.H.M. Tulen. (2002). The instantaneous frequency of cardiovascular time series: a comparison of methods. Computer Methods and Programs in Biomedicine. 71(3). 211–224. 6 indexed citations

Bussmann, Johannes B., W.L.J. Martens, J.H.M. Tulen, et al.. (2001). Measuring daily behavior using ambulatory accelerometry: The Activity Monitor. Behavior Research Methods, Instruments, & Computers. 33(3). 349–356. 261 indexed citations

10.

Bussmann, Hans, et al.. (1998). Validity and Reliability of Measurements Obtained With an “Activity Monitor” in People With and Without a Transtibial Amputation. Physical Therapy. 78(9). 989–998. 97 indexed citations

11.

Veltink, Petrus H., Johannes B. Bussmann, Wiebe de Vries, W.L.J. Martens, & Rob C. van Lummel. (1994). Discrimination of dynamic activities using accelerometry. University of Twente Research Information. 3–7. 1 indexed citations

12.

Bussmann, Johannes B., Petrus H. Veltink, W.L.J. Martens, & Henk J. Stam. (1994). Activity monitoring with accelerometry. University of Twente Research Information. 13–17. 5 indexed citations

13.

Martens, W.L.J.. (1992). The fast time frequency transform (F.T.F.T.): A novel on-line approach to the instantaneous spectrum. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 2594–2595. 11 indexed citations

14.

Declerck, A.C., et al.. (1986). Sleep Spindle Detection and Its Clinical Relevance. European Neurology. 25(2). 56–60. 7 indexed citations

15.

Declerck, A.C., W.L.J. Martens, & A. Wauquier. (1985). Evaluation of the Effects of Antiepileptic Drugs on Sleep-Wakefulness Patterns following 1 Night Total Sleep Deprivation in Epileptic Patients. Neuropsychobiology. 13(4). 201–205. 5 indexed citations

16.

Weerd, J. P. C. de, et al.. (1979). Estimation of signal and noise spectra by special averaging techniques with application to a posteriori “Wiener” filtering. Biological Cybernetics. 32(3). 153–164. 18 indexed citations

17.

Weerd, J. P. C. de & W.L.J. Martens. (1978). Theory and practice of a posteriori “Wiener” filtering of average evoked potentials. Biological Cybernetics. 30(2). 81–94. 56 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact