Forskarpresentation

Robert Ljung

Forskarpresentation

Robert Ljung

Universitetslektor

Forskningsämne: Miljövetenskap

My main research interests are how different acoustical conditions affect our cognitive ability.

The studies that I perform are mainly linked to school environment and students cognitive performance.

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Artiklar


Vetenskapliga artiklar, refereegranskade

MacCutcheon, D., Füllgrabe, C., Eccles, R., van der Linde, J., Panebianco, C. & Ljung, R. (2020). Investigating the Effect of One Year of Learning to Play a Musical Instrument on Speech-in-Noise Perception and Phonological Short-Term Memory in 5-to-7-Year-Old Children. Frontiers in Psychology, 10. 10.3389/fpsyg.2019.02865 [Mer information]
MacCutcheon, D., Hurtig, A., Pausch, F., Hygge, S., Fels, J. & Ljung, R. (2019). Second language vocabulary level is related to benefits for second language listening comprehension under lower reverberation time conditions. Journal of Cognitive Psychology, 31 (2), 175-185. 10.1080/20445911.2019.1575387 [Mer information]
MacCutcheon, D., Pausch, F., Füllgrabe, C., Eccles, R., van der Linde, J., Panebianco, C., Fels, J. & Ljung, R. (2019). The contribution of individual differences in memory span and language ability to spatial release from masking in young children. Journal of Speech, Language and Hearing Research, 62 (10), 3741-3751. 10.1044/2019_JSLHR-S-19-0012 [Mer information]
Lindegren, D., Nykänen, A. & Ljung, R. (2018). The AMR-NB voice codec reduces the listener’s capacity to recall speech. Acta Acoustica united with Acustica, 104 (3), 381-384. 10.3813/AAA.919181 [Mer information]
MacCutcheon, D., Pausch, F., Fels, J. & Ljung, R. (2018). The effect of language, spatial factors, masker type and memory span on speech-in-noise thresholds in sequential bilingual children. Scandinavian Journal of Psychology, 59 (6), 567-577. 10.1111/sjop.12466 [Mer information]
Marsh, J., Ljung, R., Jahncke, H., MacCutcheon, D., Pausch, F., Ball, L. & Vachon, F. (2018). Why are background telephone conversations distracting?. Journal of experimental psychology. Applied, 24 (2), 222-235. 10.1037/xap0000170 [Mer information]
Kabanshi, A., Wigö, H., Ljung, R. & Sörqvist, P. (2017). Human perception of room temperature and intermittent air jet cooling in a classroom. Indoor + Built Environment, 26 (4), 528-537. 10.1177/1420326X16628931 [Mer information]
Hurtig, A., Keus van de Poll, M., Pekkola, E., Hygge, S., Ljung, R. & Sörqvist, P. (2016). Children’s recall of words spoken in their first and second language : Effects of signal-to-noise ratio and reverberation time. Frontiers in Psychology, 6. 10.3389/fpsyg.2015.02029 [Mer information]
Kabanshi, A., Wigö, H., Ljung, R. & Sörqvist, P. (2016). Experimental evaluation of an intermittent air supply system – Part 2: Occupant perception of thermal climate. Building and Environment, 108, 99-109. 10.1016/j.buildenv.2016.08.025 [Mer information]
Hurtig, A., Sörqvist, P., Ljung, R., Hygge, S. & Rönnberg, J. (2016). Student's second-language grade may depend on classroom listening position. PLoS ONE, 11 (6). 10.1371/journal.pone.0156533 [Mer information]
Ljung, R., Marsh, J. & Sörqvist, P. (2015). Distraction of Counting by the Meaning of Background Speech : Are Spatial Memory Demands a Prerequisite?. Applied Cognitive Psychology, 29 (4), 584-591. 10.1002/acp.3141 [Mer information]
Marsh, J., Ljung, R., Nöstl, A., Threadgold, E. & Campbell, T. (2015). Failing to get the gist of what’s being said : background noise impairs higher-order cognitive processing. Frontiers in Psychology, 6. 10.3389/fpsyg.2015.00548 [Mer information]
Kabanshi, A., Wigö, H., Keus van de Poll, M., Ljung, R. & Sörqvist, P. (2015). The influence of heat, air jet cooling and noise on performance in classrooms. The International Journal of Ventilation, 14 (3), 321-332. 10.5555/2044-4044-14.3.321 [Mer information]
Keus van de Poll, M., Carlsson, J., Marsh, J., Ljung, R., Odelius, J., Schlittmeier, S., Sundin, G. & Sörqvist, P. (2015). Unmasking the effects of masking on performance : the potential of multiple-voice masking in the office environment. Journal of the Acoustical Society of America, 138 (2), 807-816. 10.1121/1.4926904 [Mer information]
Keus van de Poll, M., Ljung, R., Odelius, J. & Sörqvist, P. (2014). Disruption of writing by background speech : the role of speech transmission index. Applied Acoustics, 81, 15-18. 10.1016/j.apacoust.2014.02.005 [Mer information]
Sörqvist, P., Hurtig, A., Ljung, R. & Rönnberg, J. (2014). High second-language proficiency protects against the effects of reverberation on listening comprehension. Scandinavian Journal of Psychology, 55 (2), 91-96. 10.1111/sjop.12115 [Mer information]
Ljung, R., Israelsson, K. & Hygge, S. (2013). Speech Intelligibility and Recall of Spoken Material Heard at Different Signal-to-noise Ratios and the Role Played by Working Memory Capacity. Applied Cognitive Psychology, 27 (2), 198-203. 10.1002/acp.2896 [Mer information]
Sörqvist, P., Ljungberg, J. & Ljung, R. (2010). A sub-process view of working memory capacity : Evidence from effects of speech on prose memory. Memory, 18 (3), 310-326. 10.1080/09658211003601530 [Mer information]
Ljung, R., Sörqvist, P. & Hygge, S. (2009). Effects of Road Traffic Noise and Irrelevant Speech on Children’s Reading and Mathematical Performance. Noise & Health, 11 (45), 194-198. 10.4103/1463-1741.56212 [Mer information]
Ljung, R. & Kjellberg, A. (2009). Long reverberation time decreases recall of spoken information. Building Acoustics, 16 (4), 301-311. 10.1260/135101009790291273 [Mer information]
Ljung, R., Sörqvist, P., Kjellberg, A. & Green, A. (2009). Poor Listening Conditions Impair Memory for Intelligible Lectures: Implications for Acoustic Classroom Standards. Building Acoustics, 16 (3), 257-265. 10.1260/135101009789877031 [Mer information]
Kjellberg, A., Ljung, R. & Hallman, D. (2008). Recall of words heard in noise. Applied Cognitive Psychology, 22 (8), 1088-1098. 10.1002/acp.1422 [Mer information]

Övriga artiklar (populärvetenskap, debatt etc.)

Hygge, S., Kjellberg, A., Sörqvist, P., Ljung, R. & Jahncke, H. (2012). Dålig akustik i klassrum ger sämre inlärning. Vi hörs, 2, 11-13. [Mer information]
Hygge, S., Jahncke, H., Ljung, R. & Sörqvist, P. (2011). Ökat brus i klassrum ger sämre inlärning hos elev. Husbyggaren (7), 34-35. Länk [Mer information]
Kjellberg, A. & Ljung, R. (2007). Höra, förstå och minnas. Audio-nytt, 34 (4), 16-17. [Mer information]

Doktorsavhandling

Ljung, R. (2010). Room acoustics and cognitive load when listening to speech. Diss. (sammanfattning), 2010. Luleå: Luleå tekniska universitet. 27 s. Länk [Mer information]

Konferensbidrag

MacCutcheon, D., Pausch, F., Fels, J. & Ljung, R. (2017). The relationship between working memory and second language speech reception thresholds in sequential bilingual children. APCAM 2017 : 16th Annual Auditory Perception, Cognition, and Action Meeting. S. 14-14. Länk [Mer information]
Ljung, R., Maccutcheon, D., Pausch, F. & Fels, J. (2017). Top-Down Cognitive Factors Influence Second-Language Word Identification in Noise. Abstracts of the Psychonomic Society. S. 291-291. Länk [Mer information]
Hurtig, A., Hygge, S., Kjellberg, A., Nöstl, A., Keus van de Poll, M., Ljung, R. & Sörqvist, P. (2014). Acoustical conditions in the classroom : Recall of spoken words in English and Swedish heard at different signal-to-noise ratios. 11th International Congress on Noise as a Public Health Problem (ICBEN), Nara, Japan, 1-5 June, 2014. [Mer information]
Kabanshi, A., Keus van de Poll, M., Ljung, R. & Sörqvist, P. (2014). Disruption of writing by background speech : a classroom experiment. . [Mer information]
Nykänen, A., Lindegren, D., Wruck, L., Ljung, R., Odelius, J. & Möller, S. (2014). Memory of AMR coded speech distorted by packet loss. : European Acoustics Association (EAA). S. 349-. Länk [Mer information]
Kabanshi, A., Wigö, H., Ljung, R. & Sorqvist, P. (2014). Perception of intermittent air velocities in classrooms. Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate. S. 189-191. [Mer information]
Kabanshi, A., Keus van de Poll, M., Wigö, H., Ljung, R. & Sörqvist, P. (2014). The effect of heat stress on writing performance in a classroom. Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate. S. 183-188. Länk [Mer information]
Hygge, S., Ljung, R. & Israelsson, K. (2013). Acoustical conditions in the classroom I : Speech intelligibility and recall of spoken material heard at different signal-to-noise ratios.. 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. S. 4957-4964. [Mer information]
Hygge, S., Kjellberg, A., Nöstl, A., Keus, M., Hurtig, A., Ljung, R. & Sörqvist, P. (2013). Acoustical conditions in the classroom II : Recall of spoken words in English and Swedish heard at different signal-to-noise ratios. 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. S. 5091-5098. [Mer information]
Ljung, R. (2013). Overheard cell-phone conversation is more disturbing than consistent irrelevant speech, when performing office work. . [Mer information]
Keus van de Poll, M., Ljung, R., Jahncke, H., Hygge, S. & Sörqvist, P. (2013). The Effects of Irrelevant Background Speech Masked by Noise on Writing Performance. . [Mer information]
Ljung, R. (2012). Free Recall of Auditory Stimuli Presented in Degraded Listening Conditions. . [Mer information]
Ljung, R. & Lené, J. (2011). Background noise means process interference in counting performance. Proceedings of the Institute of Acoustics. S. 540-545. [Mer information]
Ljung, R., Kjellberg, A. & Green, A. (2008). Memory of a text heard in noise. ICBEN 2008 : Machantucket Connecticut, USA, July 21-25, 2008 : the 9th Congress of the International Commission on Biological Effects of Noise : Noise as a Public Health Problem : Proceedings (edited by Barbara Griefahn). Dortmund: IfADo. S. 450-453. Länk [Mer information]
Ljung, R. & Kjellberg, A. (2008). Recall of spoken words presented with a prolonged reverberation time. ICBEN 2008 : Machantucket Connecticut, USA, July 21-25, 2008 : the 9th Congress of the International Commission on Biological Effects of Noise : Noise as a Public Health Problem : Proceedings (edited by Barbara Griefahn). Dortmund: IfADo. S. 403-409. Länk [Mer information]

Rapporter

Nyberg, M., Lennernäs, M., Jahncke, H. & Ljung, R. (2012). Personalrestaurangen som måltidsarena : uppfattningar om och attityder till maten och måltiden på arbetsplatsen. Gävle: Högskolan i Gävle. 102 s. Länk [Mer information]
Publicerad av: Camilla Haglund Sidansvarig: Gunilla Mårtensson Sidan uppdaterades: 2020-02-27
Högskolan i Gävle
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