Dr Daniel Mitchell

Daniel Mitchell

University position

Investigator at MRC CBU

Departments

MRC CBU

Institutes

MRC Cognition and Brain Sciences Unit

Email

daniel.mitchell@mrc-cbu.cam.ac.uk

Home page

http://www.mrc-cbu.cam.ac.uk/people/...

Research Theme

Cognitive and Behavioural Neuroscience

The Cambridge Neuroscience Community

Interests

My research focuses on visual object representations in the human brain. I am interested in the flexible nature of such representations, their limited capacity and resolution in perception, visual working memory, and imagery, and their links with selective attention. These issues are explored in human cognition using a combination of behavioural experiments and neuroimaging (currently fMRI, and MEG).

% BOLD signal change associated with the limited number of objects encoded in a visual working memory task. Mean functional activity is overlaid on horizontal sections through an average TI-weighted MNI template brain. Positive signal is seen across a bilateral network of regions, peaking towards the posterior end of the intraparietal sulcus.
BOLD signal change associated with the limited number of objects encoded in a visual working memory task. Mean functional activity is overlaid on horizontal sections through a template brain. Positive signal is seen across a bilateral network of regions, peaking towards the posterior end of the intraparietal sulcus, where similar capacity-limited activity is also seen in the absence of a working memory task (Mitchell & Cusack, 2008).
Click image to view full-size

Research Focus

Keywords

Perception

Attention

VSTM

fMRI

MEG

Clinical conditions

No direct clinical relevance

Equipment

Behavioural analysis

Magnetic resonance imaging (MRI)

Magnetoencephalography (MEG)

Collaborators

No collaborators listed

Publications

2011

Cusack R, Veldsman M, Naci L, Mitchell DJ, Linke AC (2011), “Seeing different objects in different ways: Measuring ventral visual tuning to sensory and semantic features with dynamically adaptive imaging.” Hum Brain Mapp Details

Mitchell DJ, Cusack R (2011), “The temporal evolution of electromagnetic markers sensitive to the capacity limits of visual short-term memory.” Front Hum Neurosci 5:18 Details

2010

Linke AC, Vicente-Grabovetsky A, Mitchell DJ, Cusack R (2010), “Encoding strategy accounts for individual differences in change detection measures of VSTM.” Neuropsychologia Details

2009

Cusack R, Lehmann M, Veldsman M, Mitchell DJ (2009), “Encoding strategy and not visual working memory capacity correlates with intelligence.” Psychon Bull Rev 16(4):641-7 Details

Cusack R, Mitchell DJ, Duncan J (2009), “Discrete Object Representation, Attention Switching, and Task Difficulty in the Parietal Lobe.” J Cogn Neurosci Details

2008

Mitchell DJ, Cusack R (2008), “Flexible, capacity-limited activity of posterior parietal cortex in perceptual as well as visual short-term memory tasks.” Cereb Cortex 18(8):1788-98 Details