Questions tagged [perception]

For questions regarding the organization and identification of transducted sensory information in the brain and its interpretation and consolidation in the mind

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7
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0answers
122 views

Is the symbolic meaning of dark/black and light/white innate in humans?

Dark/black and light/white have symbolic meanings(1, 2). Dark/black represents, among others: Grief, evil, mystery (often with hidden threats), lack of knowledge, etc. Light/white represtents, among ...
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19 views

What factors influence the perception of cultural superiority?

Whether or not a culture was considered superior was posited as a reason some empires endured. In the book the grand chessboard, "Rome’s imperial power, however, was also derived from an important ...
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57 views

Equalize/balance brightness and saturation of different colors using RGB (across various monitors)

We want to present different colors to participants in an online experiment (in an HTML/CSS-based application, hence we'll use RGB values). More in specific, we ...
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Objectively defining the image parameters for facial detection, recognition, and identification in digital imagery

Axis communications have given guidelines on minimum operational requirements of a camera to allow a human observer to identify, recognise, and detect human subjects (https://www.axis.com/en-ca/...
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Is there any formal understanding of how humans perceive humanity/vitality in other entities?

When humans watch animations which contain human-like characters in them, we seem to imagine that the animated individuals, whether they be photorealistic or mere stick figures, are human, or at least ...
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33 views

Predisposition toward organizing information in a hierarchical manner?

I understand someone why we like hierarchical social structures today. They are present across virtually all cultures and we've used them for a very long time. However, it appears we also gravitate ...
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2answers
141 views

Name of cognitive bias that causes experts to overestimate their ability in other areas?

Is there a name for a cognitive bias that causes people who have been successful in one area to be overconfident in their level of knowledge / ability in another unrelated area? It's related to the ...
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40 views

Are there any definitions of the perception & JND of the colour of light approximately like how the Weber Law defines it for the brightness of light?

As I understand it, the greater light levels are the more we require in order to detect a difference. I've also read this holds true for colour saturation. However, I can't seem to find any ...
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What psychological methods exist for dealing with uncertainty?

Curious in finding out if there have been any psychological studies done on uncertainty & what the results of those studies have been. Have there been any frameworks or methodologies on combating ...
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24 views

Does information theory allow for extremely distorted mental time perception?

The experience obtained by Jaunting while being conscious is clearly impossible to attain in real life (if you don't know what I'm talking about, you can ignore this sentence). However, someone posted ...
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1answer
57 views

Is there evidence to support the Dunning-Kruger effect?

The well known Dunning-Kruger effect is oft cited as a general explanation for why people with limited expertise overestimate their abilities. Other than the initial research that described this ...
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39 views

How a living being (a huge collection of atoms) perceive things? [duplicate]

How a series of physical and chemical events leads to a very non physical/ intangible perception? For example, let's say a certain wavelength of light falls on the retina of my eyes, then the sensory ...
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1answer
37 views

Why does an image seem smaller or larger through a pinhole when viewing with human eye

I was chewing gum when I took the Trident gum wrapper and rolled it into an open cylinder with a diameter of about 1.5mm (give or take 0.15mm). When I look through the gum wrapper (I have to put it ...
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Why does an image seem smaller through a pinhole when viewing with human eye

I was chewing gum when I took the Trident gum wrapper and rolled it into an open cylinder with a diameter of about 1.5mm (give or take 0.15mm). When I look through the gum wrapper (I have to put it ...
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0answers
17 views

What characterizes Grossberg's resonances?

Following Bryan Krause's advice I tried to be more specific and picked as one specific neural theory of consciousness Stephen Grossberg's Adaptive Resonance Theory in which a specific group of ...
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63 views

How do species interpret the physical object according to Donald D. Hoffman?

I have seen some of Don Hoffman's lectures and talks and I have understood his idea in regards to how different species interpret the physical object by consciousness, as follows (no need to read if ...
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Accuracy of visual distance and size perception

Generally speaking it is known that human observers’ perceptions of distances in depth are generally inaccurate. I guess that the accuracy is sometimes a very large degree. To be more specific I am ...
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1answer
44 views

The clock stop when switching focus

I have notice that when I switch my focus from existing task to a clock (both digital, which shows numbers, and mechanical, which shows arms), the time on the clock seem to stop ticking for a brief ...
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23 views

What are the basis for developing envy and/or resentment?

Why do some people develop envy or resentment toward others, and other people with the same experiences do not? Is there a way to learn to let the envy and/or resentment go. Example would be someone ...
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35 views

What is the psychological explanation for the phenomena that a person sees the solution to a problem as “simple” once it has been found?

Is there in psychology an explanation and/or term that describes the phenomena that exists where people perceive a solution to a problem as “simple” after the solution has been found? I have noticed ...
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30 views

Triggering false sense of stimulus

When I pinch my right upper inner thigh I get a tingling sensation on my right upper forearm (on the inner side (near the place my forearm is touching the desk as I type)). I have had similar ...
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1answer
27 views

Multistable perception with three possibilities

I know that multistable perception refers to the phenomenon that occurs when we look at an ambiguous image like a Necker Cube or some sort of positive/negative space art, and we can’t perceive both ...
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1answer
42 views

How to become a philosophical zombie? [closed]

I was wondering if the following mental state was possible and if so, if it was documented. The concept would be not to be conscious for a while, to be in some way in automatic mode. And because of ...
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1answer
43 views

Perception Cardinality

While reading a science fiction book, Calculating God by Robert J. Sawyer, I came across the following lines: “Well, if I showed you one object - one rock, say - you would not have to count it. You ...
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69 views

Inability to associate a face with a name

I know there is a medical condition called "Prosopagnosia" that is described as: a cognitive disorder of face perception in which the ability to recognize familiar faces, including one's own face (...
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1answer
51 views

Does the way you perceive something for the first time have a big influence on future perceptions of similar stimuli?

You find yourself in a certain situation A. You perceive the situation: perceive objects, actions of people involved...You develop an opinion on the situation, and it was the first time you perceived ...
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Are perceptual defense and cognitive avoidance still recognized as existing mechanisms in psychology?

"Perceptual defense" is supposed to be a tendency to switch attention away from stimuli with negative valence; perhaps a kind of "cognitive avoidance". While doing a literature review on these two ...
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1answer
91 views

Are normal external stimuli still processed by the brain during a hallucination?

I was wondering if hallucinations could radically override real external stimuli. After all every sensory organ responds to external stimuli, but when a hallucination occurs, I suppose, the external ...
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What is the “perceptually correct” range or map of negative (inverted) colors?

When using software to invert the colors of a picture or screen, the software just blindly (literally) uses a mathematical formula to calculate the inverted color of each pixel. For example, in RGB, ...
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1answer
78 views

In “The Great Hack”, what are the data points used in psychological profiling?

I just saw the documentary "The Great Hack" (2019) about Cambridge Analytica. In it, they were talking about “data points” to profile people to better target them and persuade them into voting a ...
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1answer
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Why does human mind tend to understand everything in terms of duality or binary states rather than continuum of states?

We can understand things much quickly when things are defined as a duality. Like good and bad, happy and sad, positive and negative, slow and fast etc. When two things are distinguishable distinctly ...
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Visual Cortex percentage

Could somebody help please in providing some research papers or a resource book that states how much the visual cortex occupies of our cortex? I am trying to find some reliable source but I couldn't ...
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33 views

What neural mechanism allows humans to make phenomenological observations?

Phenomenological experiences are altered during mental illnesses, is there a way to objectively know about them, or atleast know how we know about them?
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Is it possible to be entirely impartial?

I am writing a paper for my English class about flaws in the justice system. One of the biggest problems I believe exists is the humans' natural instinct to judge people before we even know them. Is ...
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27 views

Is there a double dissociation between face and object processing?

We know of the condition called prosopagnosia in which the processing of faces is impaired. Is there a condition in which the processing of faces is intact and the processing of objects is impaired, ...
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172 views

What is the psychology behind epiphany?

What are the neural precursors that lead up to the epiphany? How can one, have more creative insights? How this affects our psyche? What's the psychology behind it? The word "epiphany" has a deep, ...
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1answer
58 views

How long does it takes for the feeling of vengeance to fade away by time?

Psychologically, how long does it take for a person to forget the feeling of vengeance over other person or community? For example, imagine this scenario: There was a city which was sacked by army ...
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1answer
34 views

what causes this auditory persistence illusion?

Related question: aftereffects of auditory adaptation When the radio is turned off in the middle of a song, sometimes I can still hear the song playing very quietly for tens of seconds after the ...
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1answer
159 views

Is there a foveal explanation for the duck-rabbit illusion?

Myself when I look at the duck-rabbit image, I see a duck if focus on the left (i.e. the beak) or a rabbit if I focus on the right (the nose). Is this how it works for most people, i.e. is the foveal ...
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1answer
64 views

How do we know what colors animals perceive?

Humans have three kinds of photoreceptors corresponding to different wavelength-spectra: If say photons with wavelengths of around 530 nanometers hit the human retina, this would lead to the ...
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1answer
571 views

Why does campfire lighting look creepy?

Various photography lighting guides state that when light is positioned above a face it looks natural, but when positioned below a person it looks unnatural or even "creepy". This is sometimes used ...
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1answer
36 views

Term for “That feeling that in a game you don't get items that you really need”

I've heard people in games mention that the game is programmed so that when you really need an item the game will not give it to you. You only get items that you don't currently need. I think this is ...
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Has the perception of time changed over the last century? (e.g. 1960's vs. now)

How does one measure perception of time? And has it changed over the last century? My gut feeling says that people in the 50s & 60s found time to be passing slower compared to people in the ...
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1answer
59 views

How quick a flash of light is invisible

I know this overlaps a lot of previously asked questions but: I understand that 'A photon hits a photosensitive molecule in a photoreceptor in the retina, which causes a chemical change. [...] Vision ...
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2answers
197 views

for a persistent perceptual experience, why is video able to have a lower frame rate than audio?

In film, images are typically shown to us at around 24 frames per second, but modern sound files will often have 44100 or 48000 samples per second. There's a threshold above ~12 fps where we will ...
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1answer
80 views

Independence of criterion and d-prime (psychophysics)

I am reading here, page 5 that d' (d-prime) does not vary with criterion (in contrast to hit rate for instance which does vary with criterion, and which can be a biased measure of a subject's ...
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Bouba/Kiki effect - computer-generated 3D shapes

I have seen a research project, where the subjects were presented with shapes to classify in two categories. The shapes were 3D models, some that were "pointy" and some that were "rounded". The ...
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Recognizing facial expressions

I seem to recall reading an article some number of years ago on a study or set of studies that examined the impact that a story has on the interpretation of facial expressions. Something along the ...
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69 views

Are all personalities divisive?

Most people like the smell of oranges. You might say that the distribution of reactions to the smell of oranges leans to the right. Most people dislike the smell of sewage. You might say that the ...
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How many moving objects can a person count (on average)?

I wonder if experiments in perceptual or cognitive psychology have been performed following these considerations: Standard experiment: Present small numbers of simple items to a test subject, for the ...

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