Using multivariate decoding to go beyond contrastive analyses in consciousness research

Using multivariate decoding to go beyond contrastive analyses in consciousness research

Contrasting conditions with and without awareness has been the preferred method for investigating the neural correlates of consciousness (NCC) for decades, yet recently it has been suggested that further insights can be made by moving beyond this method, specifically by meticulously controlling that potential precursors and consequences of the NCC are not mistaken for an NCC. Here, we briefly r...

Electromyographic decoding of response to command in disorders of consciousness.

OBJECTIVE To propose a new methodology based on single-trial analysis for detecting residual response to command with EMG in patients with disorders of consciousness (DOC), overcoming the issue of trial dependency and decreasing the influence of a patient's fluctuation of vigilance or arousal over time on diagnostic accuracy. METHODS Forty-five patients with DOC (18 with vegetative/unresponsi...

Beyond Metaphor: Visualizing Consciousness

Analog Decoding and Beyond

In 1998, Hagenauer [6, 7] and Loeliger et al. [9] independently proposed to decode error correcting codes by analog electronic networks. In contrast to previous work on analog Viterbi decoders (e.g. Shakiba et al. [15] and several others before, see [10]), the work both by Hagenauer and by Loeliger et al. was inspired by “turbo”-style decoding of codes described by graphs [5, 16, 17]. Large gai...

Decoding neural representational spaces using multivariate pattern analysis.

A major challenge for systems neuroscience is to break the neural code. Computational algorithms for encoding information into neural activity and extracting information from measured activity afford understanding of how percepts, memories, thought, and knowledge are represented in patterns of brain activity. The past decade and a half has seen significant advances in the development of methods...