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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1answer
334 views

Is there an effect of visual expertise on eye movements when examining an image?

In the following linked image, you can see the eye movement traces of a subject examining a bust of Nefertiti (I came across this image while reading the following blog). When I was in grade ...
9
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1answer
173 views

Are some facial features more important than others in human facial recognition?

I'm often surprised by the human ability to correctly identify other individuals despite significant modifications due to ageing, hairstyle, injury etc. But, sometimes the addition of a beard and a ...
9
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1answer
139 views

Hearing first but understanding later?

I have experienced this phenomenon several times and checked with other people as well. It goes like this: you hear something, but it's just a sound with no meaning. Some seconds later, you ...
9
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2answers
125 views

Trying to understand equations in Karl Friston article

I am trying to understand a neuroscience article by Karl Friston. In it he gives three equations that are, as I understand him, equivalent or inter-convertible and refer to both physical and Shannon ...
9
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1answer
596 views

How do animals recognize other animals of their own species?

My motivation for this question is dog-based, but I suppose it would apply equally well to humans. How do animals recognize their own kind, particularly where there is large variation in appearance? ...
8
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2answers
164 views

Is there a difference between hearing and decoding the sound?

I presume that deafness is the inability of hearing any sounds. And I presume that it may also be possible to be less able to decode sounds. In other words, an inability to translate or understand the ...
8
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2answers
548 views

How good are people at guessing the ages of their respective ethnic group?

I have a Chinese friend and she says that she has a much harder time guessing Western people's ages than Eastern people's ages. No particular surprise here. For me it's the opposite. I have the ...
8
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2answers
468 views

Does perception have a “frame rate”?

Are the objects of visual perception processes divisible into individual, still frames, like video is? If so: Are the perceptions from different senses synced to the same frequency? Are these ...
8
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3answers
321 views

Why prefer “99% fat free” to “1% fat”?

In my experience I tend to find low-fat products labelled as "99% fat free" much more often than the equivalent "1% fat".* Why is this so? To me it seems counter-intuitive, because it reminds me of ...
8
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1answer
224 views

Fusiform Face Area (FFA) for within class recognition?

Is there any evidence (papers, studies, etc) that the Fusiform Face Area is used for any other type of recognition besides facial recognition? I remember hearing or reading a long time ago that ...
8
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2answers
238 views

Can the daily use of two or more languages impact cognitive capacity?

I've read the following threads: Is it possible to think in a second language? Does language and/or culture affect an individual's cognitive capacity? is it possible to think without language? ...
8
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103 views

Are the physical sensations of an emotion due to neural activity strictly in the brain or also in the body?

Symptoms of anxiety and anger are often described as some sort of energetic sensation in my chest and sometimes face or arms. Are these sensations an 'illusion' from neural activity strictly in the ...
8
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1answer
71 views

Neural Mechanisms of Accumulation and Triggering

What is the mechanism by which the brain/mind 'accumulates' a felt-sense to a point of 'triggering' an action? For example, if unable to complete a task (e.g. opening packaging), a person can feel ...
8
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1answer
114 views

Are there shapes defined by 3 (or more) generative parameters whose mapping to psychological similarity space is known?

I am trying to generate 4 shapes that are equidistant in psychological similarity space - meaning that they are all equally discriminable from one another - which differ in 3 parameters, such that ...
8
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1answer
200 views

Are there any rules about masking?

I am currently programming an experiment where participants have to do a divided visual field task. In a paper about the correct methodology about these tasks, it is said that you should use a ...
8
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1answer
59 views

Rated model of driving-related processes and objects

The Salience, Effort, Effort and Value (SEEV) model for predicting the distribution of visual attention contains a parameter called 'value' which represents the importance of a certain area of the ...
8
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1answer
456 views

How do people visually recognize their own reflection?

I'm interested in how the brain processes and recognizes the image of the person's own face. A bit of background: A while ago I've developed an overlay-camera like app for iPhone that allows me to ...
7
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2answers
833 views

What is the term for “What has been seen cannot be unseen” in cognitive sciences?

During a discussion with my officemate I told him that I read somewhere that the gas pillar in Carina nebula looks like a cat punching the dog; ever since then, every time my wallpaper slideshow ...
7
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1answer
994 views

What is the maximum number of objects an average human being can recognize at once?

I'm wondering, how many objects can the average human being can recognize? For example, most of us can't look at this and say how many boxes there are without counting them: But I think we can ...
7
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3answers
351 views

Why is sensory substitution not that successful

by successful I mean made it out to the large world market or being massively funded. After looking online it seems that the most relevant research is the one done by Bach-y-rita about the seeing with ...
7
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1answer
220 views

How do people that can't perceive 3D view a stereoscopic 3D image or movie?

According to Mendiburu (2009), 3-15% of the people can't view a stereoscopic 3D image or movie, mostly due to poor binocular vision. Imagine one of those is in the movie theater, trying to watch a 3D ...
7
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2answers
82 views

aftereffects of auditory adaptation

Adaptation is a very robust feature of sensory processing: when a stimulus is displayed for a prolonged period, or repeatedly, the neural response to it will diminish. This process creates a local ...
7
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1answer
218 views

Can prolonged neural adaptation lead to HPPD?

The human brain adapts to a constant stimulus of our neural system. For instance, if we ride a train and look out of the window for a long time and the train stops, we have the feeling of slowly ...
7
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2answers
221 views

Is there any chromatic analogue of the Shepard tone?

Is there any chromatic analogue of the Shepard tone? I am imagining that each pure tone would correspond to a pure wavelength of light, transformed in such a way that the middle of three consecutive ...
7
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2answers
141 views

Any models that act using both streams of visual processing?

The Two-Stream Hypothesis, where object properties are processed independently from spatial information, remains the most well established theory of visual processing. However, it concerns me that ...
7
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1answer
2k views

Do we recognize ourselves better when we see our mirror image?

A friend of mine recently noticed that we both have a birthmark on the face. He looked at me and said that we have exactly the same mark. But he has it left and I right. But, when looking in a mirror, ...
7
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2answers
534 views

To what extent does culture affect emotion perception?

In a globalized world, in spite of cultural differences, we share, at least at the symbolic level (language level), lots of things. Considering pictures that display emotions (affect), such as those ...
7
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1answer
1k views

Is Apple's iPhone Retina Display really accurate to human eye resolution?

Apple based their Retina Display on the following claim, as cited by Wikipedia: The display has a contrast ratio of 800:1. The screen is marketed by Apple as the "Retina Display", based on the ...
7
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1answer
157 views

Philosophy Meets Neuroscience: The Molyneux's Problem

Consider the Molyneux's problem "If a man born blind can feel the differences between shapes such as spheres and cubes, could he similarly distinguish those objects by sight if given the ability ...
7
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1answer
142 views

How come we see a line when there isn't one in this picture?

I got this picture I generated myself and I don't understand how come we can see two diagonal lines when, I think, there is no actual lines. Zooming in: Center: Just another 2px wide square… ...
7
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1answer
169 views

Do eyes accommodate to color?

I've heard that our eyes accommodate between colors too far from each other in the visible spectrum. I imagine it's not a true focal point accommodation, but rather linked with how brain processes the ...
7
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1answer
249 views

Psychology of timbre processing

Are there any studies concerning the psychological aspects of timbre processing in the brain, e.g. while listening to music? In particular, can any lower-level correlates be discerned when trying to ...
7
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1answer
142 views

Is there evidence for a unique isolated internal representation of loved ones?

Some time ago, I've read that the most significant people in a person's life have their own internal representation/model of within the person's mind. For example: An internal representation of a ...
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50 views

Curved/angled geometrical forms and association with femininity/ masculinity

Is there any research or theoretical reasoning on a strong inclination of human mind to associate curved forms with femininity and angled ones with masculinity? (A similar concept of association is ...
6
votes
4answers
467 views

Why does your recorded or objective voice sound different to what you hear in your own head?

When speaking, I hear my own voice very differently from how others do and from what it really is. The sound differs in tone, pitch, volume, etc. For example, recordings of my singing or speaking in ...
6
votes
4answers
365 views

is it possible to think without language?

I'm trying to fathom what it might be like for a person with aphasia and for one with agnosia. For a person with a visual agnosia I wonder this: if two unrecognizable objects are shown to them, and ...
6
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2answers
125 views

How to test whether a person is Left-Eared or Right-Eared?

It is well-known that the majority of humans have left-right preferences when using their hands or feet. But it is perhaps less well-known that the same can be true for our eyes and ears. I once ...
6
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2answers
109 views

Why do those with viral infections feel better after wrongly taking antibiotics?

Though I'm unversed in science, I accept and understand that bacteria differ from viruses; so antibiotics don't help in viral infections. Regardless, because older family members still allege that ...
6
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1answer
255 views

Face-Blindness: Have I seen you before?

Sometimes when I meet new people, I feel like I have seen them before. Their faces might look similar to people's faces, I have really have met before. The wiki article on Difficulties with Facial ...
6
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1answer
147 views

Phenomenon that causes music to sound like it's being played at a different tempo than remembered?

Something I've noticed now and then is that I'll be listening to a song off my music player and it sounds like it's being played in a tempo faster or slower than I remember the song being. Is this a ...
6
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2answers
107 views

Is there a way to compare the subjective experiences of two different subjects upon an object?

It is the major problem of all cognitive sciences to deal with subjectivity. On the other hand, in order to figure out what is cognition or psychology, one must ultimately deal with this problem. As a ...
6
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1answer
369 views

Does your voice pitch affect your perceived authority?

I heard a claim that people with lower voice pitch are perceived as more credible than people with higher pitch. Is there any research on this?
6
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1answer
84 views

Is it conceivable to transmit all sound information in the tactile modality?

You may have heard of Evelyn Glennie, an acclaimed solo virtuoso percussionist. She has been profoundly deaf from the age of 12, but learned to differentiate pitch tactilely. She had absolute pitch, ...
6
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1answer
1k views

How do you know if it's psychosomatic or not?

"It's in your head" is often true and often offensive. But as your head can invent any number of psychological and physiological symptoms how can you distinguish whether something is or isn't ...
6
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1answer
112 views

What is the neurophysiological mechanism behind double hearing?

A patient with sensorineural hearing loss can have the symptom of hearing "double" in the damaged ear. Not having a time-delayed echo, but hearing as if he (or other people) speak with "two voices" at ...
6
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1answer
80 views

Any research on how we use visual category information in visuomotor tasks?

So I've been reading up on the Two-streams Hypothesis*, and it bothers me that the explanations both sides give only extend to tasks involving one type of visual information. For example, an ...
6
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1answer
325 views

Binaural Beats meets Sound-Color-Synesthesia

Binaural beats, the perception of which arises in the brain for specific physical stimuli. ... The effect on the brainwaves depends on the difference in frequencies of each tone: for example, if ...
6
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1answer
75 views

In psychophysics, why are log luminance rather than absolute luminance values reported?

Are there any papers which justify converting into log luminance? For example papers showing humans being sensitive to changes in log luminance rather than luminance per se?
6
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1answer
137 views

What delay between two audio sources is seen as “noticeable” to most people?

I'm completing a project that involves synchronising two audio sources over a network, and I need to find some figures that represent what kind delay would be seen as "noticeable". I've tried ...
6
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1answer
86 views

Is inhibitory brain circuitry involved in cross-modal sensory perception?

In many research articles, a vague description of a inhibitory circuitry in the brain is mentioned. This is presented as an inhibitory mechanism that prevents input from one sensory modality to excite ...