Neural Networks Debunk Phrenology

  title={Neural Networks Debunk Phrenology},
  author={Robert T. Knight},
  pages={1578 - 1579}
  • R. Knight
  • Published 15 June 2007
  • Biology
  • Science
Intracortical recordings reveal that distinct regions of the mammalian brain must synchronize their activity to support certain behaviors. 
Fronto-parietal cortex in sequential behaviour
This work was funded by the Medical Research Council (UK)intramural program MC-A060-5PQ10. The author was supported by the Gates Cambridge Trust
Corticopetal Acetylcholine: Possible Scenarios on the Role for Dynamic Organization of Quasi-Attractors
The corticopetal ACh helps to transiently organize a global (inter- and intra-cortical) quasi-attractors via gamma range synchrony when it is behaviorally needed as top-down attentions and expectation.
[Magnetoencephalographic study on the disruption of the neural network].
  • S. Tobimatsu
  • Biology, Psychology
    Rinsho shinkeigaku = Clinical neurology
  • 2014
Recently, neural oscillations, especially gamma oscillation (>30 Hz) has been paid attention in the Systems Neuroscience. In monkey, neural oscillations are involved in either intrahemispheric or
Cognitive Consilience: Primate Non-Primary Neuroanatomical Circuits Underlying Cognition
This work focuses on neuroanatomy related to primate non-primary cortical systems to elucidate the basis underlying the distinct homotypical cognitive architecture and introduces a novel method of integrating and presenting data in multiple independent visualizations.
Electrophysiological Evidence for Spatiotemporal Flexibility in the Ventrolateral Attention Network
It is found that the subregions that comprise the reflexive ventrolateral attention network dissociate both spatially and temporally as a function of the nature of the sensory information and current task demands.
Impulse Propagation along Thalamocortical Fibers Can Be Detected Magnetically outside the Human Brain
It is argued that the MEG technique holds the promise of providing novel information in impulse transmissions along not only the thalamocortical pathway but also other fiber tracts connecting distant brain areas in humans.
The Isoenergetic Brain: The Idea and Some Implications
  • J. Korf
  • Biology
    The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
  • 2010
The brain is proposed as an isoenergetic structure having little energy barriers that limit the distribution of neuronal information, thereby facilitating unitary brain functioning and enabling efficient coordination of neural activities, thus facilitating fast access to memory.
A Framework for Understanding the Emerging Role of Corticolimbic-Ventral Striatal Networks in OCD-Associated Repetitive Behaviors
This work addresses the emerging role of medial OFC, amygdala, and ventral tegmental area projections to the ventral striatum (VS) in OCD pathophysiology and discusses this network’s potential role as a locus of OCD pathology and effective treatment.


Modulation of Neuronal Interactions Through Neuronal Synchronization
It is proposed that the pattern of synchronization flexibly determines thepattern of neuronal interactions, and that the mutual influence among neuronal groups depends on the phase relation between rhythmic activities within the groups.
Neuronal Oscillations in Cortical Networks
Recent findings indicate that network oscillations bias input selection, temporally link neurons into assemblies, and facilitate synaptic plasticity, mechanisms that cooperatively support temporal representation and long-term consolidation of information.
Prefrontal modulation of visual processing in humans
This work provides anatomical, electrophysiological and behavioral evidence that prefrontal cortex regulates neuronal activity in extrastriate cortex during visual discrimination and provides evidence for intrahemispheric prefrontal modulation of visual processing.
High Gamma Power Is Phase-Locked to Theta Oscillations in Human Neocortex
The results indicate that transient coupling between low- and high-frequency brain rhythms coordinates activity in distributed cortical areas, providing a mechanism for effective communication during cognitive processing in humans.
Typologies of attentional networks
Given the recent explosion in empirical data, attentional typologies provide powerful conceptual tools with which to contextualize and integrate these findings.
Brain Oscillations Control Timing of Single-Neuron Activity in Humans
Recording from 1924 neurons indicates that theta and delta oscillations facilitate phase coding and that gamma oscillations help to decode combinations of simultaneously active neurons, providing support for the temporal-coding hypothesis in humans.
Storage of 7 +/- 2 short-term memories in oscillatory subcycles
It is shown that activity patterns associated with multiple memories can be stored in a single neural network that exhibits nested oscillations similar to those recorded from the brain.
Neural Mechanisms of Visual Attention: How Top-Down Feedback Highlights Relevant Locations
Parietal neurons may selectively increase activity in earlier sensory areas to enable focused spatial attention in monkeys performing a visual matching task.
Top-Down Versus Bottom-Up Control of Attention in the Prefrontal and Posterior Parietal Cortices
The result indicates that top-down and bottom-up signals arise from the frontal and sensory cortex, respectively, and different modes of attention may emphasize synchrony at different frequencies.
What do we want to know?
  • Greg J. Huang
  • Medicine
    American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics
  • 2005