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In this study, we discuss a non-Kolmogorovness of the optical illusion in the human visual perception. We show subjects the ambiguous figure of "Schröeder stair", which has two different meanings [1]. We prepare 11 pictures which are inclined by different angles. The tendency to answer "left side is front" depends on the order of showing those pictures. For a mathematical treatment of such a context dependent phenomena, we propose a non-Kolmogorovian probabilistic model which is based on adaptive dynamics.
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June 27, 2017 Lecture Note Series, IMS, NUS — Review Vol. 9in x 6in 10582-15 page 201
A HYSTERESIS EFFECT ON OPTICAL ILLUSION AND
NON-KOLMOGOROVIAN PROBABILITY THEORY
Masanari Asano1, Andrei Khrennikov2, Masanori Ohya3,4and
Yoshiharu Tanaka3,5
1Liberal Arts Division, Tokuyama College of Technology
Gakuendai, Shunan, Yamaguchi, Japan
asano@tokuyama.ac.jp
2International Center for Mathematical Modeling in Physics and Cognitive
Sciences, Linnaeus University
S-35195, V¨axj¨o, Sweden
andrei.khrennikov@lnu.se
3Department of Information Science, Tokyo University of Science
2641, Yamazaki, Noda, Chiba, Japan
4ohya@rs.noda.tus.ac.jp
5tanaka@is.noda.tus.ac.jp
In this study, we discuss a non-Kolmogorovness of the optical illusion
in the human visual perception. We show subjects the ambiguous figure
of “Schr¨oeder stair”, which has two different meanings [1]. We prepare
11 pictures which are inclined by different angles. The tendency to ans-
wer “left side is front” depends on the order of showing those pictures.
For a mathematical treatment of such a context dependent phenomena,
we propose a non-Kolmogorovian probabilistic model which is based on
adaptive dynamics.
1. Introduction
In classical probability theory, joint probability of two event systems
P(A, B) must hold usual probability law such as a formulae of total pro-
bability (FTP), i.e. P(A) = PAP(A, B). However, it is known that, in
quantum probability theory, FTP is not always satisfied [8, 11, 16]. Also,
we can consider quantum probability is a kind of context dependent pro-
bability. From this point of view, although quantum mechanics is usually
considered as a physics for understanding microscopic phenomena, quan-
tum probability can be applied to non-physical context dependent pheno-
201
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202 M. Asano et al.
mena, e.g. in the fields of biology, cognitive psychology, decision making
theory [4, 5,14, 15, 17]. In this sense, we can say that quantum probability
theory is one of non-Kolmogorov probability theories.
We have been discussed the violation of FTP on context dependent
phenomena in the various fields: State change of tongue for sweetness [16],
Bayesian updating biased by Psychological factor [12], Lactose-glucose in-
terference in E. coli growth [10, 13], decision making in two-player game
[6, 7, 9].
In this study, we show an optical illusion on the ambiguous figure of
Schr¨oder stair [1], and propose its non-Kolmogorov probabilistic model.
First, we introduce the concept of contextual probability, and a defini-
tion of joint probability based on adaptive dynamics. Second, we explain
Schr¨oder stair and our experiment so as to obtain non-Kolmogorov statis-
tical data. In the last part, we construct a model of visual perception on
Shr¨oder stair, based on mathematical frame work of adaptive dynamics.
2. Adaptive Dynamics and Joint Probability
In this section, we reconsider the fundamental concept of probability theory
with a simple example, “taste for sweetness”.
2.1. Taste for sweetness: As an example of adaptive
phenomena
Let us consider sweetness of food. If we taste an orange, then some people
say that “it is sweet” (1), and the other people say that “it is not sweet” (0).
The ratio between 1 and 2 is depend on the orange. Therefore we describe
the property of the orange’s sweetness as the probability distribution of an
random variable which takes 1 or 0.
Here let us consider that one takes other foods, sugar and chocolate.
We denote a random variable for chocolate by C= 1,0, and a random
variable for sugar by S= 1,0. If one takes either sugar or chocolate, then
the probability of answer 1, i.e. P(C= 1) or P(S= 1), is very close to
1. However, when one takes chocolate after taking sugar, the tongue will
become dull. Therefore most of people cannot taste sweet (maybe no taste).
Then P(C= 1|S= 1)P(S= 1) + P(C= 1|S= 0)P(S= 0) is much less
than 1. In this case, we have the following inequality.
P(C= 1) 6=P(C= 1|S= 1)P(S= 1) + P(C= 1|S= 0)P(S= 0).
This inequality is called violation of formulae of total probability (FTP),
and makes very important discussion for the non-Kolmogorov feature of
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A Hysteresis Effect 203
adaptive (context-dependent) phenomena. The most important thing in
the above inequality is that the experimental context of LHS is different
from that of RHS. That is, P(C= 1) of LHS is given by the experimental
results without taking sugar, but RHS is obtained as the result of both
sugar and chocolate. From the point of Kolmogorov’s probability theory,
the violation is obvious since probability space or measure must be defined
within the single experimental context, e.g. context of “taking sugar” or
“not taking sugar”. However, if we discuss the difference of these contexts,
the violation of FTP is meaningful. For instance, in order to discuss the
change of tongue state, we need to combine these two different contexts. It
is necessary to construct such a theory in which the context dependency of
the probabilistic phenomena can be discussed.
2.2. What is adaptive dynamics?
Adaptive dynamics is a detailed theory to describe the existence (subsis-
tent) by taking various effects surrounding it, and the concept of adaptive
dynamics was proposed by Ohya. In the book [11], adaptive dynamics is
explained as follows.
“We find a mathematics to describe a sort of subjective aspects of
physical phenomena, for instance, observation, effects of surroun-
dings”
From mathematical point of view, adaptive dynamics is considered that
the dynamics of a state or an observable after an instant (say the time
t0) attached to a system of interest is affected by the existence of some
other observable and state at that instant. Such dynamics was defined by
lifting [3] as follows.
Let ρ S (H) and A O (H) be a state and an observable before t0,
and let σ∈ S (H ⊗ K) and Q O (H ⊗ K) be a state and an observable to
give an effect to the state ρand the observable A. This effect is described
by a lifting E
σQ, so that the state ρbecomes E
σQρfirst, then it will be
trKE
σQρρσ Q. The adaptive dynamics here is the whole process such as
Adaptive Dynamics :ρ⇒ E
σQρρσ Q = trKE
σQρ.
That is, what we need is how to construct the lifting for each problem to
be studied, that is, we properly construct the lifting E
σQ by choosing σand
Qproperly. The expectation value of another observable B∈ O (H) in the
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204 M. Asano et al.
adaptive state ρσQ is
trρσQB= trHtrKBIE
σQρ.
Now suppose that there are two quantum event systems
A={akR, Fk∈ P (H)},
B={bjR, Ej∈ P (K)},
where we do not assume Fk,Ejare projections, but they satisfy the condi-
tions PkFk=I,PjEj=Ias POVM (positive operator valued measure)
corresponding to the partition of a probability space in classical system.
Then the “joint-like” probability obtaining akand bjmight be given by the
formula
P(ak, bj) = tr EjFkE
σQρ,(2.1)
where is a certain operation (relation) between Aand B, more generally,
one can take a certain operator function f(Ej, Fk) instead of EjFk. If σ,
Qare independent from any Fk,Ejand the operation is the usual tensor
product so that Aand Bcan be considered in two independent systems
or to be commutative, then the above “joint-like” probability becomes the
joint probability. However, if this is not the case, e.g.,Qis related to A
and B, the situation will be more subtle. Therefore, the problem is how
to set the operation and how to construct the lifting E
σQ in order to
describe the particular problems associated to systems of interest. Recently
we have been discuss this problem in the context dependent systems like
bio-systems and psycho-systems mentioned in Introduction.
2.3. Non-Kolmogorovian probability in adaptive dynamics
for sweetness
Let |e1iand |e2ibe the orthogonal vectors describing sweet and non-sweet
states, respectively. We set the |e1iand |e2ias 1
0and 0
1in the Hil-
bert space C2.The initial (neutral) state of a tongue is given by a density
operator
ρ≡ |x0i hx0|,
with x0=1
2(|e1i+|e2i). Here the neutral pure state ρdescribes the state
of tongue before the experiment, and we start from this state ρ.
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A Hysteresis Effect 205
When one tastes sugar, the state of tongue will be changed. Such change
can be written as the operator on the Hilbert space. The operator corre-
sponding to tasting sugar is represented as
S=λ10
0λ2,
where λiare complex numbers satisfying |λ1|2+|λ2|2= 1. This operator
can be regarded as the square root of the sugar state σS:
σS=|λ1|2E1+|λ2|2E2, E1=|e1i he1|, E2=|e2i he2|.
Taking sugar, he will taste that it is sweet with the probability |λ1|2and
non-sweet with the probability |λ2|2, so |λ1|2should be much higher than
|λ2|2for usual sugar. This comes from the following change of the neutral
initial state of a tongue:
ρρS= Λ
S(ρ)SρS
tr |S|2ρ.(2.2)
This is the state of a tongue after tasting sugar.
The subtle point of the present problem is that, just after tasting sugar,
the state of a tongue is neither ρSnor ρ. However, for a while the tongue
becomes dull to sweetness (and this is the crucial point of our approach
for this example), so the tongue state can be written by means of a certain
“exchanging” operator X=0 1
1 0 such that
ρSX =XρSX.
Similarly, when one tastes chocolate, the state will be given by
ρSX C = Λ
C(ρSX )CρS X C
tr |C|2ρSX
,
where the operator Chas the form
C=µ10
0µ2
with |µ1|2+|µ2|2= 1. Common experience tells us that |λ1|2≥ |µ1|2
|µ2|2≥ |λ2|2and the first two quantities are much larger than the last two
quantities.
As can be seen from the preceding consideration, in this example the
“adaptive set” {σ, Q}is the set {S, X, C}. Now we introduce the following
(nonlinear) lifting:
E
σQ(ρ) = ρSρSX C = Λ
S(ρ)Λ
C(XΛ
S(ρ)X).
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206 M. Asano et al.
The corresponding joint probabilities are given by
P(S=j, C =k) = tr EjEkE
σQ(ρ).
The probability that one tastes sweetness of the chocolate immediately after
tasting sugar is
P(S= 1, C = 1) + P(S= 2, C = 1) = |λ2|2|µ1|2
|λ2|2|µ1|2+|λ1|2|µ2|2,
which is P(C= 1). Note that this probability is much less than
P(C= 1) = tr E1Λ
C(ρ) = |µ1|2,
which is the probability of sweetness tasted by the neutral tongue ρ. This
means that the usual formula of total probability should be replaced by the
adaptive (context dependent) probability law.
3. Optical Illusions in Human Perception Process
In this section, we shortly introduced the phenomena of “optical illusion”,
and we show the experiment and its results on optical illusion.
A human being does not recognize what comes into our eyes. Our re-
cognition is unconsciously biased. How to bias depends on how it exists in
certain surroundings. See the Figure 1. These letters are of the same bright-
ness of color in reality. However we feel the different brightness which is
biased by background colors. This is a famous example of optical illusion.
Psychologists explain that this is caused by “perceptual constancy”.
The perceptual constancy plays a very important role in human perception.
When we see a pyramid, the shape of pyramid is different for the angles
Fig. 1. Peceptual constancy: Left letter ‘A’ looks a little brighter than right letter ‘A’.
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A Hysteresis Effect 207
at which we see it. From the side, we can see a triangle, while, from the
sky, we can see a square. However, we can recognize this triangle and that
square means the same object (a pyramid). It is considered that such stable
recognitions of humans are assisted by the perceptual constancya.
3.1. Ambiguous figure
Ambiguous figure is a figure which has two or more meanings. Rubin’s vase
is one of most famous ambiguous figures (see Figure 2). The intensity of
illusion depends on how it exists in the surroundings [2]. For example, if we
change the size of figure, how can we see in the same ambiguous figure? For
the tiny figure of Rubin’s vase, one can confirm that we have the tendency
of seeing “vase” more than “faces”.
Fig. 2. Rubins vase: It has two meanings of “two human faces” (white) and “a vase”
(black).
3.2. Depth-inversion for Schr¨oder stair
Another famous example of ambiguous figure is Schr¨oder stair (see Figure
3).
We can see two different types of stair seen in the Figure 3.
1) The surface of A is front, and the surface of B is back.
2) The surface of B is front, and the surface of A is back.
We can change our recognition consciously or unconsciously. Such phe-
nomena is called “depth inversion”. Tendency of recognitions 1) and 2)
aThere is a similar phenomenon that we can feel that snow at night is white (not gray).
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208 M. Asano et al.
Fig. 3. Schr¨oder stair: One can see the steps in the center of box (which is leaning).
depends on various features of picture; e.g. Relative size of the part A for
B, Color (or shadow) in picture, Angle to the horizon, etc. We test the
tendency with respect to leaning angle.
We show the subjects of experiment the 11 different pictures.
Case A The value of θis randomly selected from {0, 10, 20, 30, 40, 45, 50,
60, 70, 80, 90}, but each value is selected only once.
Case B The value of θis regularly changed from 0 to 90.
Case C The value of θis regularly changed from 90 to 0.
We divided the 151 subjects into three groups: (A) 55 persons, (B) 48
persons, (C) 48 persons. Computer show a picture to a subject. Recognition
and decision making. Subjects answer 1) or 2) by means of typing corre-
sponding keys. In case (A), computer decide the order of showing pictures
for each subject.
Here we describe the answer for the figure with angle θas a random
variable Xθsuch that
Xθ=L(L is front)
R(R is front) .
Figure 4 shows the probability distribution P(Xθ=L) with respect to
angle θ.
We can see the difference among three cases especially at the middle
range of angles. Tendency of human perception is affected by unconscious
cognitions for the dynamical change of the angle. We confirm that the
probability is decreasing with respect to θfor any cases. However, in the
result of case B, the speed of decreasing is faster than that in case A. In
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A Hysteresis Effect 209
Fig. 4. Probability distribution P(Xθ=L) with respect to angle θ.
the case C, we remark that angle θis decreasing from 90 degrees. Therefore
this kind of acceleration effect is similarly seen in case C. These effects may
come from perceptual consistency explained in the previous section.
4. Non-Kolmogorovian Model of Optical Illusion
In this section, we show a non-Kolmogorovian model of optical illusion in
Schr¨oder stair.
Let us consider a subject making his answer. We hypothesize the follo-
wing things:
H1 In the subject’s brain, there are some imaginary “Agents” which are
copies of the subject shown in the picture.
H2 Subject’s decision is given by a majority opinion of all the agents.
Conceptually, this type of decision-making is a kind of “self-dialog”
which is unconsciously proceeding in the perception process. Further, we
add another hypothesis:
H3 Each agent is mathematically expressed as the superposition state of
two alternative answers L or R as follows.
|xi=r1
2|Li+r1
2|Ri.
Here |Li=1
0and |Ri=0
1be the orthogonal vectors describing
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210 M. Asano et al.
the answers (i) and (ii), respectively. This state vector |xidescribes pre-
decision state of the agent, and represents the neutral mind for |Liand
|Ribefore the decision making starts. In the sequel sections, we discuss the
more detailed process of decision making, and propose a model based on
adaptive dynamics theory.
4.1. Model of a majority among Nagents
Let Hbe the two dimensional Hilbert space C2. An initial state of a sub-
ject’s mind is given by
ρ≡ |xi hx|.
When a subject is shown a picture leaning at angle θ, the subject recognizes
the lean of the picture. Such a recognition process is a state-change given
by the operator
M(θ) = cos θ0
0 sin θ.
After the recognition, the state of mind is changed from initial state ρto
an adaptive state
ρθ= Λ
M(ρ)MρM
tr |M|2ρ=cos2θcos θsin θ
cos θsin θsin2θ.
The fluctuation between (i) and (ii) is expressed as the above ρθ.
Here, let us recall the hypothesis H1. At the beginning of the process, a
subject imagine and create an imaginary agent in the brain, and this agent
has own mind which is expressed as the adaptive state ρθ. A subject repe-
atedly create the imaginary agents during an experiment for Xθ. We can
consider the adaptive state describing the whole agents as the N-composite
state of ρθ:
σ=ρθ⊗ · · · ρθ
| {z }
N
,
where Nis the number of the agents which are created by a subject during
making the answer (i) or (ii). If a subject takes a short time to answer, then
Nmight be small. After creation of agents (or on the way to create them),
the subject can talk with the imaginary agents in the brain, and he/she
knows the answer of each agent. Through this dialogue, the subject can
know the opinions of all the agents. For the Nagents, there are 2Npossible
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A Hysteresis Effect 211
opinions, and one of them is appeared. The subject’s answer is determined
by reference to the opinions of all the agents.
At the final step of this dialogue, we additionally assumed that the σis
changed into LNor RNsince every subject in this experiment can
not answer anything except (i) or (ii). Along this assumption, we introduce
the observable-adaptive operator Qwhich describes the process of making
a common decision. For example, in the case of N= 2,3 and 4, the operator
Qis
Q(2) =|LLi hLL|+|RRi hRR|,
Q(3) =|LLLi(hLLL|+hLLR|+hLRL|+hRLL|)
+|RRRi(hRRR|+hRRL|+hRLR|+hLRR|),
Q(4) =|LLLLi(hLLLL|+hLLLR|+hLLRL|+hLRLL|+hRLLL|)
+|RRRRi(hRRRR|+hRRRL|+hRRLR|+hRLRR|+hLRRR|).
By applying the operator Qto the state of agents σ, the minority opinions
of the agents are ignored, and changed to the majority ones. In this sense,
we call this decision making as the majority system among the Nagents.
Here, the lifting E
σQ :SC2→ S C2Nis defined as
E
σQ(ρ) = QσQ
tr |Q|2σ=Q{Λ
M(ρ)}NQ
tr |Q|2{Λ
M(ρ)}N∈ S C2N,
and the probabilities for Xθare given with this lifting as
P(Xθ=L)tr |Li hL|NE
σQ(ρ),
P(Xθ=R)tr |Ri hR|NE
σQ(ρ).
In N= 2,3 and 4, the probability P(Xθ=L) has the following forms:
P(2) (Xθ=L) = cos4θ
cos4θ+ sin4θ,
P(3) (Xθ=L) = cos3θ+ 3 cos2sin θ2
(cos3θ+ 3 cos2sin θ)2+sin3θ+ 3 sin2cos θ2,
P(4) (Xθ=L) = cos4θ+ 4 cos3θsin θ2
(cos4θ+ 4 cos3θsin θ)2+sin4θ+ 4 sin3cos θ2.
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212 M. Asano et al.
Fig. 5. Comparison of the values of P(Xq =L) in our model with the experimental
data (A).
Fig. 6. Noise of biased phase; (Left) N= 2, (Center) N= 3, (right) N= 4.
We compare these probabilities with experimental data of case (A), see
Figure 5. One can find that the probabilities P(Xθ=L) in N= 2,3 and 4
coincide with experimental data of A.
In the situation (B) or (C), we take another adaptive operator M(θ+φ)
which angle is shifted by an unknown psychological bias φ, instead of M(θ).
This value of φcan be also calculated by experimental data. We show it
in the Figure 6. The values of φin (B) are higher than those in (C), and
especially the difference between φ(B)and φ(C)is clearly seen in middle
range of angle θ. As increasing N, this difference become smaller.
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... This last phenomenology of hysteresis (to be meant according to psychology) related to vision may be also correlated analogically ( [3]) with certain aspects of the physical phenomenology discussed first in [21], and dealing with conscious-unconscious visual recognition, hence reconsidered in [3] where the authors have then pointed out the possible analogical identification of hysteresis effects in visual recognition experiments performed in [2]. Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logics -so providing a concrete model for unconscious and consciousness processing of information and their interaction. ...
... This last phenomenology of hysteresis (to be meant according to psychology) related to vision may be also correlated analogically ( [3]) with certain aspects of the physical phenomenology discussed first in [21], and dealing with conscious-unconscious visual recognition, hence reconsidered in [3] where the authors have then pointed out the possible analogical identification of hysteresis effects in visual recognition experiments performed in [2]. Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logics -so providing a concrete model for unconscious and consciousness processing of information and their interaction. ...
... Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logics -so providing a concrete model for unconscious and consciousness processing of information and their interaction. To be precise, in the cognitive modeling worked out in [21] and [3], if S represents the unconscious information processing and S the conscious one, then, in the concrete instance of von Helmholtz's unconscious inference, S represents just the processing of sensation (its unconscious nature having been emphasized as early by Hermann von Helmholtz) and S represents processing of perception-conscious representation of sensation. The related experiment performed in [2], then theoretically analyzed in [21] and [3], concerned the bistable perception (of the type S → S ) of the rotation of an ambiguous figure (i.e., the Schr¨oder stair), which turned out to be different, for each of the three groups of persons chosen to form statistical test samples, due to the diversity of data's contextuality (suitably treatable just by quantum formalism) entailing optical illusions affected by memory biases, and put into relation with hysteresis effects in [3]. ...
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This comment is aimed to point out that the recent work due to H. Kim, J-Y. Moon, G. A. Mashour and U. Lee ([22]), in which the clinical and experiential assessment of a brain network model suggests that asymmetry of synchronization suppression is the key mechanism of hysteresis observed during loss and recovery of consciousness in general anesthesia, has indirectly provided empirical confirmation of the theoretical model outlined in [8] (Iurato and Khrennikov, 2015), based on a possible implementation of an hysteretic pattern into a formal model of unconscious-conscious interconnection worked out on the basis of representations of mental entities by p-adic numbers. One of the main assumptions done by the authors of [22], is that (physical) hysteresis (of their brain network model took into account) observed during anesthetic state transitions shares the same underlying mechanism as that observed in non-biological networks. This makes licit to put into comparative relations [8] and [22].
... This last phenomenology of hysteresis (to be meant according to psychology) related to vision may be also correlated analogically ( [3]) with certain aspects of the physical phenomenology discussed first in [21], and dealing with conscious-unconscious visual recognition, hence reconsidered in [3] where the authors have then pointed out the possible analogical identification of hysteresis effects in visual recognition experiments performed in [2]. Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logicsso providing a concrete model for unconscious and consciousness processing of information and their interaction. ...
... This last phenomenology of hysteresis (to be meant according to psychology) related to vision may be also correlated analogically ( [3]) with certain aspects of the physical phenomenology discussed first in [21], and dealing with conscious-unconscious visual recognition, hence reconsidered in [3] where the authors have then pointed out the possible analogical identification of hysteresis effects in visual recognition experiments performed in [2]. Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logicsso providing a concrete model for unconscious and consciousness processing of information and their interaction. ...
... Indeed, in such a context, H. von Helmholtz unconscious inferences, which play a crucial role in the passage from sensation to perception, are considered in relation to a quantum-like pattern of sensation-perception dynamics -quantically treated, in that not based on classical logicsso providing a concrete model for unconscious and consciousness processing of information and their interaction. To be precise, in the cognitive modeling worked out in [21] and [3], if S represents the unconscious information processing and S ′ the conscious one, then, in the concrete instance of von Helmholtz's unconscious inference, S represents just the processing of sensation (its unconscious nature having been emphasized as early by Hermann von Helmholtz) and S ′ represents processing of perceptionconscious representation of sensation. The related experiment performed in [2], then theoretically analyzed in [21] and [3], concerned the bistable perception (of the type S → S ′ ) of the rotation of an ambiguous figure (i.e., the Schröder stair), which turned out to be different, for each of the three groups of persons chosen to form statistical test samples, due to the diversity of data's contextuality (suitably treatable just by quantum formalism) entailing optical illusions affected by memory biases, and put into relation with hysteresis effects in [3]. ...
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This comment is aimed to point out that the recent work due to Kim, et al. in which the clinical and experiential assessment of a brain network model suggests that asymmetry of synchronization suppression is the key mechanism of hysteresis has coupling with our theoretical hysteresis model of unconscious-conscious interconnection based on dynamics on m-adic trees.
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Preface; Part I. Physics Concepts in Social Science? A Discussion: 1. Classical, statistical and quantum mechanics: all in one; 2. Econophysics: statistical physics and social science; 3. Quantum social science: a non-mathematical motivation; Part II. Mathematics and Physics Preliminaries: 4. Vector calculus and other mathematical preliminaries; 5. Basic elements of quantum mechanics; 6. Basic elements of Bohmian mechanics; Part III. Quantum Probabilistic Effects in Psychology: Basic Questions and Answers: 7. A brief overview; 8. Interference effects in psychology - an introduction; 9. A quantum-like model of decision making; Part IV. Other Quantum Probabilistic Effects in Economics, Finance and Brain Sciences: 10. Financial/economic theory in crisis; 11. Bohmian mechanics in finance and economics; 12. The Bohm-Vigier Model and path simulation; 13. Other applications to economic/financial theory; 14. The neurophysiological sources of quantum-like processing in the brain; Conclusion; Glossary; Index.
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In this paper we apply the quantum-like (QL) approach to microbiology to present an operational description of the complex process of diauxie in Escherichia coli. We take as guaranteed that dynamics in cells is adaptive, i.e., it depends crucially on the microbiological context. This very general assumption is sufficient to appeal to quantum and more general QL probabilistic models. The next step is to find the operational representation - by operators in complex Hilbert space (as in quantum physics). To determine QL operators, we used the statistical data from Inada et al. (1996). To improve the QL-representation, we needed better experimental data. Corresponding experiments were recently done by two of the authors and in this paper we use these new data. In these data we found that bio-chemical context of precultivation of populations of E. coli plays a crucial role in E. coli preferences with respect to sugars. Hence, the form of the QL operator representing lactose operon activation also depends crucially on precultivation. One of our results is decomposition of the lactose operon activation operator to extract the factor determined by precultivation. The QL operational approach developed in this paper can be used not only for description of the process of diauxie in E. coli, but also other processes of gene expression. However, new experimental statistical data are demanded.
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In experiments of games, players frequently make choices which are regarded as irrational in game theory. In papers of Khrennikov (Information Dynamics in Cognitive, Psychological and Anomalous Phenomena. Fundamental Theories of Physics, Kluwer Academic, Norwell, 2004; Fuzzy Sets Syst. 155:4–17, 2005; Biosystems 84:225–241, 2006; Found. Phys. 35(10):1655–1693, 2005; in QP-PQ Quantum Probability and White Noise Analysis, vol.XXIV, pp.105–117, 2009), it was pointed out that statistics collected in such the experiments have “quantum-like” properties, which can not be explained in classical probability theory. In this paper, we design a simple quantum-like model describing a decision-making process in a two-players game and try to explain a mechanism of the irrational behavior of players. Finally we discuss a mathematical frame of non-Kolmogorovian system in terms of liftings (Accardi and Ohya, in Appl. Math. Optim. 39:33–59, 1999). KeywordsGame theory–Decision-making–Non-Kolmogorovian probability–Quantum-like model