User profiles for N. Hiratani

Naoki Hiratani

Department of Neuroscience, Washington University in St Louis
Verified email at wustl.edu
Cited by 230

Redundancy in synaptic connections enables neurons to learn optimally

N Hiratani, T Fukai - … of the National Academy of Sciences, 2018 - National Acad Sciences
… | x 1 : n , y 1 : n ) is the probability distribution of the hidden parameter v c after n trials. Importantly,
… of v c n + 1 directly from v c n , because to calculate v c n + 1 = ∫ v ′ c p ( v ′ c | x 1 : …

[HTML][HTML] Purification and characterization of lysosomal H (+)-ATPase. An anion-sensitive v-type H (+)-ATPase from rat liver lysosomes.

K Arai, A Shimaya, N Hiratani, S Ohkuma - Journal of Biological Chemistry, 1993 - Elsevier
Lysosomal H(+)-ATPase was purified to homogeneity from rat liver lysosomes. It is a bafilomycin
A1-sensitive Mg(2+)-ATPase, which reacts with antibodies against the 16- and 70-kDa …

On the stability and scalability of node perturbation learning

N Hiratani, Y Mehta, T Lillicrap… - Advances in Neural …, 2022 - proceedings.neurips.cc
To survive, animals must adapt synaptic weights based on external stimuli and rewards.
And they must do so using local, biologically plausible, learning rules--a highly nontrivial …

Optimal quadratic binding for relational reasoning in vector symbolic neural architectures

N Hiratani, H Sompolinsky - Neural Computation, 2023 - direct.mit.edu
… where c is a N c -dimensional vector and ψ is a nonlinear mapping ψ : R N × R N → R N c
⁠. This … If we define Qi j k = ∑ n Q i j n A n k and Pl m k = ∑ n P l m n A - 1 k n with an N c × …

[HTML][HTML] Rapid Bayesian learning in the mammalian olfactory system

N Hiratani, PE Latham - Nature communications, 2020 - nature.com
… where n is the noise due to sensory variability and unreliable OSN-spiking activity, and
the affinity, or the mixing weight, w ij , determines how strongly odor j activates glomerulus i (Fig. …

Detailed dendritic excitatory/inhibitory balance through heterosynaptic spike-timing-dependent plasticity

N Hiratani, T Fukai - Journal of Neuroscience, 2017 - Soc Neuroscience
… We defined the mean potential of a dendritic subunit k as u b k (t) ≡ ∑ i=1 N b E w i k u i k
(t)/(w o E N b E ), and calculated the somatic membrane potential as u soma (t) ≡ ∑ k=1 K g b …

[HTML][HTML] Associative memory model with long-tail-distributed Hebbian synaptic connections

N Hiratani, JN Teramae, T Fukai - Frontiers in computational …, 2013 - frontiersin.org
… The model consists of N E excitatory neurons and N I inhibitory neurons. The excitatory
neurons are connected with each other by a lognormally weight-distributed Hebbian-type …

Evolution of neural activity in circuits bridging sensory and abstract knowledge

F Mastrogiuseppe, N Hiratani, P Latham - Elife, 2023 - elifesciences.org
… For simplicity, we assume that the input and the intermediate layer have identical size N,
and we consider N to be large. The sensory input vector is indicated with x. Activity in the …

[HTML][HTML] Interplay between short-and long-term plasticity in cell-assembly formation

N Hiratani, T Fukai - PloS one, 2014 - journals.plos.org
… The network consists of N E excitatory neurons and N I inhibitory neurons (N E = 2500, N
I = 500), connected randomly with connection probability c XY (X,Y = E or I). We defined …

[HTML][HTML] Interactive reservoir computing for chunking information streams

T Asabuki, N Hiratani, T Fukai - PLoS computational biology, 2018 - journals.plos.org
… The number of input neurons was N I = 26 in all simulations except S4C Fig, in which N I
was 5s with s being the size of the chunk. In all simulations, τ = 10 [ms] and g G = 1.5. The …