Markus Handal Sneve

Senioringeniør - Psykologisk institutt
Bilde av Markus Handal Sneve
English version of this page
Telefon +47-22845216
Mobiltelefon 41218003 +47-41218003
Rom A04.009
Besøksadresse Psykologisk institutt Forskningsveien 3a 0373 Oslo
Postadresse Postboks 1094 Blindern 0317 OSLO

Faglige interesser

Low level memory mechanisms in vision:

Early visual areas are sensitive to differences in basic stimulus features such as orientation, size (spatial frequency), and motion; so-called low-level features. The low-level feature coding neurons are highly active during the analysis of incoming perceptual information, and normally, when the stimulus disappears, their activity goes back to a pre-stimulus level. In a visual working memory task, however, the information about the low-level features of the stimulus to be remembered is probably retained and retrieved through activity in some of the areas of their encoding. Thus, under certain task-related demands the sensory role of the visual system can be utilized by and extended into other, often characterized as higher-level, cognitive domains. Using functional magnetic resonance imaging (fMRI) in combination with psychophysical paradigms, I investigate how the early visual system in the human cortex is recruited during memory for low-level visual features.

Neural mechanisms of filling-in:

Some regions of the visual field are blind as a consequence of the normal organization of the visual system, e.g. the blind spot which is caused by the lack of photoreceptors at the point where the optic nerve leaves the retina. Such constantly blind regions of the visual field are normally not noticed because of filling-in processes; one perceive the brightness, color, and texture of the adjacent areas as if they were genuine visual inputs to the blind area. Again, using a combination of fMRI and psychophysics, I try to elucidate the mechanisms behind such filling-in processes.




  • 2006-2008: Neuro-Cognitive Psychology, Master's Program. Ludwig-Maximilians University, Munich, Germany

  • 2003-2005: Clinical Psychology, University of Oslo, Norway

Relevant arbeidserfaring

  • 2009 - Present: PhD research fellow - Center for the Study of Human Cognition

  • 2006 - 2009: E-Prime lecturer and consultant - at Sneve's Prime Time Services

  • 2004 - 2009: Research assistant to Professor Svein Magnussen and Associate Professor Tor Endestad

  • 2008: Research assistant to Professor Bruno Laeng and Dr. Thomas Espeseth


  • Mark D'Esposito, University of California, Berkeley, USA

  • Mark W. Greenlee, University of Regensburg, Germany

  • Gianluca Campana, University of Padova, Italy

  • Lothar Spillmann, University of Freiburg, Germany

  • John S. Werner, University of California, Davis, USA

Emneord: Kognitiv psykologi og nevropsykologi, Avdeling for kognitiv og klinisk nevrovitenskap


  • Fjell, Anders Martin; Sneve, Markus Handal; Grydeland, Håkon; Storsve, Andreas Berg; Amlien, Inge Kasbohm; Yendiki, Anastasia & Walhovd, Kristine B (2017). Relationship between structural and functional connectivity change across the lifespan – a longitudinal investigation. Human Brain Mapping.  ISSN 1065-9471.  38(1), s 561- 573 . doi: 10.1002/hbm.23403 Fulltekst i vitenarkiv.
  • Sneve, Markus Handal; Grydeland, Håkon; Amlien, Inge Kasbohm; Langnes, Espen; Walhovd, Kristine B & Fjell, Anders Martin (2017). Decoupling of large-scale brain networks supports the consolidation of durable episodic memories. NeuroImage.  ISSN 1053-8119.  153, s 336- 345 . doi: 10.1016/j.neuroimage.2016.05.048 Fulltekst i vitenarkiv.
  • Dørum, Erlend Solberg; Alnæs, Dag; Kaufmann, Tobias; Richard, Geneviéve´; Lund, Martina Jonette; Tønnesen, Siren; Sneve, Markus Handal; Mathiesen, Nina Christine; Rustan, Øyvind; Gjertsen, Øivind; Vatn, Sigurd; Fure, Brynjar; Andreassen, Ole Andreas; Nordvik, Jan Egil & Westlye, Lars Tjelta (2016). Age-related differences in brain network activation and co-activation during multiple object tracking. Brain and Behavior.  ISSN 2162-3279.  6(11) . doi: 10.1002/brb3.533 Fulltekst i vitenarkiv.
  • Fjell, Anders Martin; Sneve, Markus Handal; Grydeland, Håkon; Storsve, Andreas Berg & Walhovd, Kristine B (2016). The Disconnected Brain and Executive Function Decline in Aging. Cerebral Cortex.  ISSN 1047-3211. . doi: 10.1093/cercor/bhw082 Fulltekst i vitenarkiv.
  • Fjell, Anders Martin; Sneve, Markus Handal; Storsve, Andreas Berg; Grydeland, Håkon; Yendiki, Anastasia & Walhovd, Kristine B (2016). Brain Events Underlying Episodic Memory Changes in Aging: A Longitudinal Investigation of Structural and Functional Connectivity. Cerebral Cortex.  ISSN 1047-3211.  26(3), s 1272- 1286 . doi: 10.1093/cercor/bhv102 Fulltekst i vitenarkiv.
  • Roe, James; Nesheim, Mathias; Mathiesen, Nina Chung; Moberget, Torgeir; Alnæs, Dag & Sneve, Markus Handal (2016). The effects of tDCS upon sustained visual attention are dependent on cognitive load. Neuropsychologia.  ISSN 0028-3932.  80, s 1- 8 . doi: 10.1016/j.neuropsychologia.2015.11.005
  • Alnæs, Dag; Kaufmann, Tobias; Richard, Geneviéve´; Duff, Eugene; Sneve, Markus Handal; Endestad, Tor; Nordvik, Jan Egil; Andreassen, Ole Andreas; Smith, Stephen M. & Westlye, Lars Tjelta (2015). Attentional load modulates large-scale functional brain connectivity beyond the core attention networks. NeuroImage.  ISSN 1053-8119.  109, s 260- 272 . doi: doi:10.1016/j.neuroimage.2015.01.026 Vis sammendrag
  • Alnæs, Dag; Sneve, Markus Handal; Richard, Geneviéve´; Skåtun, Kristina Cecilie; Kaufmann, Tobias; Nordvik, Jan Egil; Andreassen, Ole Andreas; Endestad, Tor; Laeng, Bruno & Westlye, Lars Tjelta (2015). Functional connectivity indicates differential roles for the intraparietal sulcus and the superior parietal lobule in multiple object tracking. NeuroImage.  ISSN 1053-8119.  123, s 129- 137 . doi: 10.1016/j.neuroimage.2015.08.029
  • Fjell, Anders Martin; Amlien, Inge; Sneve, Markus Handal; Grydeland, Håkon; Tamnes, Christian Krog; Chaplin, Tristan; Rosa, Marcello & Walhovd, Kristine B (2015). The roots of Alzheimer's disease: Are high-expanding cortical areas preferentially targeted?. Cerebral Cortex.  ISSN 1047-3211.  25(9), s 2556- 2565 . doi: 10.1093/cercor/bhu055 Fulltekst i vitenarkiv.
  • Fjell, Anders Martin; Sneve, Markus Handal; Grydeland, Håkon; Storsve, Andreas Berg; de Lange, Ann-Marie Glasø; Amlien, Inge Kasbohm; Røgeberg, Ole & Walhovd, Kristine B (2015). Functional connectivity change across multiple cortical networks relates to episodic memory changes in aging. Neurobiology of Aging.  ISSN 0197-4580.  36(12), s 3255- 3268 . doi: 10.1016/j.neurobiolaging.2015.08.020 Fulltekst i vitenarkiv.
  • Sneve, Markus Handal; Grydeland, Håkon; Nyberg, Lars; Bowles, Ben; Amlien, Inge Kasbohm; Langnes, Espen; Walhovd, Kristine B & Fjell, Anders Martin (2015). Mechanisms underlying encoding of short-lived versus durable episodic memories. Journal of Neuroscience.  ISSN 0270-6474.  35(13), s 5202- 5212 . doi: 10.1523/JNEUROSCI.4434-14.2015 Fulltekst i vitenarkiv.
  • Sneve, Markus Handal; Sreenivasan, Kartik K; Alnæs, Dag; Endestad, Tor & Magnussen, Svein (2015). Short-term retention of visual information: Evidence in support of feature-based attention as an underlying mechanism. Neuropsychologia.  ISSN 0028-3932.  66, s 1- 9 . doi: 10.1016/j.neuropsychologia.2014.11.004
  • Alnæs, Dag; Sneve, Markus Handal; Espeseth, Thomas; Endestad, Tor; van de Pavert, Steven & Laeng, Bruno (2014). Pupil size signals mental effort deployed during multiple object tracking and predicts brain activity in the dorsal attention network and the locus coeruleus. Journal of Vision.  ISSN 1534-7362.  14(4), s 1- 20 . doi: 10.1167/14.4.1
  • Sneve, Markus Handal; Magnussen, Svein; Alnæs, Dag; Endestad, Tor & D'Esposito, Mark (2013). Top–Down Modulation from Inferior Frontal Junction to FEFs and Intraparietal Sulcus during Short-term Memory for Visual Features. Journal of cognitive neuroscience.  ISSN 0898-929X.  25, s 1944- 1956 . doi: 10.1162/jocn_a_00426
  • Sneve, Markus Handal; Alnæs, Dag; Endestad, Tor; Greenlee, Mark W. & Magnussen, Svein (2012). Visual short-term memory: Activity supporting encoding and maintenance in retinotopic visual cortex. NeuroImage.  ISSN 1053-8119.  63(1), s 166- 178 . doi: 10.1016/j.neuroimage.2012.06.053 Vis sammendrag
  • Sneve, Markus Handal; Alnæs, Dag; Endestad, Tor; Greenlee, Mark W. & Magnussen, Svein (2011). Modulation of activity in human visual area V1 during memory masking. PLoS ONE.  ISSN 1932-6203.  6(4) . doi: 10.1371/journal.pone.0018651
  • Espeseth, Thomas; Sneve, Markus Handal; Rootwelt, Helge & Laeng, Bruno (2010). Nicotinic Receptor Gene CHRNA4 Interacts with Processing Load in Attention. PLoS ONE.  ISSN 1932-6203.  5(12) . doi: 10.1371/journal.pone.0014407
  • Storsve, Andreas Berg; Walhovd, Kristine B; Sneve, Markus Handal; Tamnes, Christian Krog; Krogsrud, Stine Kleppe & Fjell, Anders Martin (2013). Hukommelse gjennom livet - Nevrovitenskapelige perspektiver.
  • Alnæs, Dag; Endestad, Tor; Magnussen, Svein; Sneve, Markus Handal; Spillmann, Lothar & Werner, John S. (2010). Perceptual filling-in of the blind spot: an fMRI study. Perception.  ISSN 0301-0066.  39, s 175- 175
  • Espeseth, Thomas; van de Pavert, Steven; Jynge, Slije; Sneve, Markus Handal & Laeng, Bruno (2010). The pupil dilates as a function of attentional effort in multiple object tracking.
  • Sneve, Markus Handal; Alnæs, Dag; Endestad, Tor; Greenlee, Mark W. & Magnussen, Svein (2010). Retrieval-related activity in early visual areas. Perception.  ISSN 0301-0066.  39, s 38- 38
  • Emaus, Nina; Omsland, Tone Kristin; Ahmed, Luai Awad; Grimnes, Guri; Sneve, Markus Handal & Berntsen, Gro (2009). BONE MINERAL DENSITY AND PREVALENCE OF OSTEOPOROSIS AT THE HIP IN WOMEN AND MEN AGED 30-85 YEARS - THE TROMSO STUDY. Osteoporosis International.  ISSN 0937-941X.  20, s 64- 65
  • Sneve, Markus Handal; Magnussen, Svein; Endestad, Tor & Greenlee, Mark W. (2009). Memory modulation of area V1. Perception.  ISSN 0301-0066.  38, s 178- 178
Publisert 20. sep. 2010 11:32 - Sist endret 4. nov. 2016 13:45