User profiles for P. R. Roelfsema

Pieter Roelfsema

Verified email at nin.knaw.nl
Cited by 22913

The distinct modes of vision offered by feedforward and recurrent processing

VAF Lamme, PR Roelfsema - Trends in neurosciences, 2000 - cell.com
An analysis of response latencies shows that when an image is presented to the visual system,
neuronal activity is rapidly routed to a large number of visual areas. However, the activity …

Cortical algorithms for perceptual grouping

PR Roelfsema - Annu. Rev. Neurosci., 2006 - annualreviews.org
A fundamental task of vision is to group the image elements that belong to one object and to
segregate them from other objects and the background. This review provides a conceptual …

Different states in visual working memory: When it guides attention and when it does not

…, J Peters, R Houtkamp, PR Roelfsema - Trends in cognitive …, 2011 - cell.com
Recent studies have revealed a strong relationship between visual working memory and
selective attention, such that attention is biased by what is currently on our mind. However, …

Visuomotor integration is associated with zero time-lag synchronization among cortical areas

PR Roelfsema, AK Engel, P König, W Singer - Nature, 1997 - nature.com
Abstract INFORMATION processing in the cerebral cortex invariably involves the activation
of millions of neurons that are widely distributed over its various areas. These distributed …

Object-based attention in the primary visual cortex of the macaque monkey

PR Roelfsema, VAF Lamme, H Spekreijse - Nature, 1998 - nature.com
Typical natural visual scenes contain many objects, which need to be segregated from each
other and from the background. Present theories subdivide the processes responsible for …

The Herschel-heterodyne instrument for the far-infrared (HIFI)

…, ND Whyborn, P Dieleman, PR Roelfsema… - Astronomy & …, 2010 - aanda.org
Aims. This paper describes the Heterodyne Instrument for the Far-Infrared (HIFI) that was
launched onboard ESA's Herschel Space Observatory in May 2009. Methods. The instrument …

Alpha and gamma oscillations characterize feedback and feedforward processing in monkey visual cortex

…, C Van Der Togt, PR Roelfsema - Proceedings of the …, 2014 - National Acad Sciences
Cognitive functions rely on the coordinated activity of neurons in many brain regions, but the
interactions between cortical areas are not yet well understood. Here we investigated …

The distributed nature of working memory

…, PC Klink, B Spitzer, PR Roelfsema… - Trends in cognitive …, 2017 - cell.com
Studies in humans and non-human primates have provided evidence for storage of working
memory contents in multiple regions ranging from sensory to parietal and prefrontal cortex. …

Synchronization of oscillatory responses in visual cortex correlates with perception in interocular rivalry

P Fries, PR Roelfsema, AK Engel… - Proceedings of the …, 1997 - National Acad Sciences
In subjects suffering from early onset strabismus, signals conveyed by the two eyes are not
perceived simultaneously but in alternation. We exploited this phenomenon of interocular …

Role of reticular activation in the modulation of intracortical synchronization

MHJ Munk, PR Roelfsema, P König, AK Engel… - Science, 1996 - science.org
During aroused states of the brain, electroencephalographic activity is characterized by fast,
irregular fluctuations of low amplitude, which are thought to reflect desynchronization of …