Behavioral Stochastic Resonance within the Human Brain

Kitajo, Keiichi; Nozaki, Daichi; Ward, Lawrence M.; Yamamoto, Yoshiharu

doi:10.1103/physrevlett.90.218103

Cited by 176 publications

(132 citation statements)

References 26 publications

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“…Under a small change of the solar power irradiating the earth, he proposed that an ice age transition can occur with the help of the environmental noise of the earth. Many SR phenomena have been reported for biological applications [18] such as the small signal detection of crayfish [19], information gain in ion channels [20], signal processing in the human brain [21] and so forth.…”

Section: Introductionmentioning

confidence: 99%

Cobalt Nano Particle Size Dependence of Noise Modulations in Relation to Nonlinearity

Kawahara

Yamaguchi

Maehashi

et al. 2010

e-J. Surf. Sci. Nanotechnol.

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Carbon nanotubes (CNTs) are low-dimensional materials, and their surface therefore affects several properties of CNTs. For example, CNT field effect transistors (CNTFETs) are well known as noisy devices caused by the adhesion of molecules on the surface. However, nonlinear systems sometimes have advantages in working with noise. Therefore, we combined the noise CNTFET and another transistor of CNT for a trial nonlinear system. The sine wave amplification in the transistor with noise was then measured. In this system, the control of noise is required for operation of the device and this might be common for nano-sized devices. We can control the noise properties of CNTFET through the control of the Co nano particles catalyst. Depending on fabrication conditions, the noise of a CNTFET has different noise intensity and gate voltage (Vg) dependence with 1/f type noise. Noise in CNTFETs grown on small Co particles can be controlled within the small |Vg|, and the control range for noise is wide. We studied the modification of nonlinearity using our trial nonlinear system. It was governed by the ratio of the signals and the noise, and shows the robustness of modification.

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Section: Introductionmentioning

confidence: 99%

Cobalt Nano Particle Size Dependence of Noise Modulations in Relation to Nonlinearity

Kawahara

Yamaguchi

Maehashi

et al. 2010

e-J. Surf. Sci. Nanotechnol.

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show abstract

“…Several studies have suggested that the higher central nervous system might utilize the noise to enhance sensory information [13]. SR studies in humans can be divided in unimodal SR (signal and noise enter the same sense) [18,19], central SR (signal and noise enters in similar local receptors and later mix in the cortex) [20] and behavioral SR (similar to central SR but its effect is observed in one sense and then enacted in the behavior of the subjects) [21]. Before the SR principle was proposed, Harper [22] discovered what we currently would call crossmodal stochastic resonance while studying the effect of auditory white noise on sensitivity to visual flicker.…”

Section: Stochastic Resonancementioning

confidence: 99%

The Impact of Stochastic and Deterministic Sounds on Visual, Tactile and Proprioceptive Modalities

Lugo¹,

Doti²,

Faubert³

2011

Advances in Sound Localization

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“…In humans, the visual cortex is activated by external dynamic white noise, with electrophysiological cortical responses that are independent from stimulus contrast (Fig. 1), and perception reflects signal/noise interaction and SR phenomena [70][71][72][73][74]. In a neuromagnetic study on humans, the brain responses to visual stimuli featuring a "threshold-SR" function reproduced the stimulus function both in the activated cortical structures dedicated to vision and in those devoted to language processing [74].…”

Section: Noise Stochastic Resonance and Neuronal Functionmentioning

confidence: 99%

Neuronal Functional Diversity and Collective Behaviors

Sannita

2008

J Biol Phys

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A major question in today's neuroscience is how the brain's complex operations and organization emerge from individual components. The robustness of neuronal properties with flexible linkages between regulatory processes conceivably accounts for the adaptive, tunable, multistable dynamics; the coding schemes; and the complexity of neuronal functional (sub)systems. Interneurons and neurotransmitter diversity, resonance phenomena due to properties of the cell, time/frequency-dependent activation of dedicated neuronal assemblies, and code-and frequency-specific oscillations interact in determining the brain functional setup and operations. Such an arrangement would also provide the functional requirements for access to neural mechanisms, dedicated neuronal circuitry and the proper timing allowing for the selective differentiation among cortical neurons due to performing in different tasks. No comprehensive theory or systematic methodological approach appears yet conceivable. The scenario, however incomplete and incompletely characterized, is nevertheless promising and warrants further investigation.

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Behavioral Stochastic Resonance within the Human Brain

Cited by 176 publications

References 26 publications

Cobalt Nano Particle Size Dependence of Noise Modulations in Relation to Nonlinearity

Cobalt Nano Particle Size Dependence of Noise Modulations in Relation to Nonlinearity

The Impact of Stochastic and Deterministic Sounds on Visual, Tactile and Proprioceptive Modalities

Neuronal Functional Diversity and Collective Behaviors

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