Daniel E Glaser

Daniel E Glaser
King's College London | KCL · Science Gallery

About

25
Publications
7,359
Reads
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6,346
Citations
Additional affiliations
January 2002 - December 2006
University College London
Position
  • Imaging Neuroscientist

Publications

Publications (25)
Article
The field of neuroaesthetics attempts to identify the brain processes underlying aesthetic experience, including but not limited to beauty. Previous neuroaesthetic studies have focussed largely on paintings and music, while performing arts such as dance have been less studied. Nevertheless, increasing knowledge of the neural mechanisms that represe...
Chapter
Part 6 is concerned with biophysical models of neuronal responses and the inversion of these models to make inferences about their parameters. In relation to the previous chapters, there is a greater focus on how signals observed with neuroimaging are generated and the underlying physical and physiological mechanisms. In this chapter, we look at ha...
Article
It is noted that classical and recent approaches do not explicitly estimate the covariance structure of the noise in the data. With the help of modern approaches the experimenter expects to model types of covariation in the data. This estimation can be noisy and, therefore, is best conducted over pooled collections of voxels. The use of this techni...
Article
Full-text available
Optical topography (OT) relies on the near infrared spectroscopy (NIRS) technique to provide noninvasively a spatial map of functional brain activity. OT has advantages over conventional fMRI in terms of its simple approach to measuring the hemodynamic response, its ability to distinguish between changes in oxy- and deoxy-hemoglobin and the range o...
Article
Full-text available
We employed a parametric version of the comparison Stroop paradigm to investigate the processing of numerical magnitude and physical size under task-relevant and -irrelevant conditions to investigate two theoretical issues: (1) What is the neural fate of task-irrelevant information? (2) What is the neural basis of the resolution of the conflict bet...
Article
The human brain contains specialized circuits for observing and understanding actions. Previous studies have not distinguished whether this "mirror system" uses specialized motor representations or general processes of visual inference and knowledge to understand observed actions. We report the first neuroimaging study to distinguish between these...
Article
Full-text available
The human intraparietal sulcus (IPS) is implicated in processing symbolic number information and possibly in nonsymbolic number information. Specific IPS activity for discrete quantities (numerosities) as compared with continuous, analogue quantity has not been demonstrated. Here we use a stimulus-driven paradigm to distinguish automatic estimation...
Article
The contribution of anterior cingulate cortex (ACC) to human cognition remains unclear. The rostral (rACC) and dorsal (dACC) ACC cortex are implicated in tasks that require increased response control due to emotional and cognitive interference, respectively. However, both rACC and dACC are activated by conditions that induce changes in visceral aro...
Article
Full-text available
When we observe someone performing an action, do our brains simulate making that action? Acquired motor skills offer a unique way to test this question, since people differ widely in the actions they have learned to perform. We used functional magnetic resonance imaging to study differences in brain activity between watching an action that one has...
Article
The aim of this note is to revisit the analysis of conjunctions in imaging data. We review some conceptual issues that have emerged from recent discussion (Nichols, T., Brett, M., Andersson, J., Wager, T., Poline, J.-B., 2004. Valid Conjunction Inference with the Minimum Statistic.) and reformulate the conjunction of null hypotheses as a conjunctio...
Article
In neuroimaging, data are often modeled using general linear models. Here, we focus on GLMs with error covariances which are modeled as a linear combination of multiple variance/covariance components. Each of these components is weighted by one variance parameter. In many analyses variance parameters are estimated using restricted maximum likelihoo...
Article
Full-text available
Many psychophysical and imaging studies show a close relationship between the perceptual and motor system. Here, we investigate the role of expertise during action observation. For this purpose, we have designed an event-related fMRI paradigm with subjects drawn from populations with expertise in one of two defined dance styles. Ballet and Capoeira...
Article
One of the main limitations of scalability in body-brain evolution systems is the representation chosen for encoding creatures. This paper defines a class of representations called generative representations, which are identified by their ability ...
Article
In Friston et al. ((2002) Neuroimage 16: 465-483) we introduced empirical Bayes as a potentially useful way to estimate and make inferences about effects in hierarchical models. In this paper we present a series of models that exemplify the diversity of problems that can be addressed within this framework. In hierarchical linear observation models,...
Article
Full-text available
this paper. * To whom correspondence should be addressed (e-mail: amiram. grinvald@weizmann.ac.il). In this report, we describe the successful culmination Neuron
Article
Full-text available
Conventional imaging techniques have provided high-resolution imaging either in the spatial domain or in the temporal domain. Optical imaging utilizing voltage-sensitive dyes has long had the unrealized potential to achieve high resolution in both domains simultaneously, providing subcolumnar spatial detail with millisecond precision. Here, we pres...
Chapter
A number of new imaging techniques are available to scientists to visualize the functioning brain directly, revealing unprecedented details. These imaging techniques have provided a new level of understanding of the principles underlying cortical development, organization and function. In this chapter we will focus on optical imaging in the living...

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