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14 votes
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What is the information storage capacity of the human brain?

Disclaimer: Quantifying the capacity of the human brain is quiet complex as you might imagine. And although in cognitive neuroscience we often compare the brain to computers this is not an exact ...
Comte's user avatar
  • 1,196
12 votes

How do we hear our inner voice?

No, inner speech does not follow the same neural pathway as speech coming in from outside. Rather, inner speech uses the same neural mechanism as outer speech - that is, speech going out. The neural ...
Arnon Weinberg's user avatar
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9 votes
Accepted

If I think of a checkerboard, is there a similar structure to see in my visual cortex?

Probably. What you mentioned in your question is called retinotopy. There is a mapping between locations on your retina and areas on your cortex. As you go further up the visual processing streams, ...
K A's user avatar
  • 981
8 votes

Is praying the Catholic rosary a meditation and does it enhance brain plasticity?

The accepted method of praying the Rosary is to actually complete five (5) decades, each containing the Hail Mary (Ave Maria) repeated 10 times (hence the term "decade"). Each decade is followed by an ...
Craig's user avatar
  • 81
8 votes

Do stimulants increase the IQ tests score for everyone?

IQ in ADHD sufferers indeed increases with the treatment of stimulants, such as methylphenidate (Meyes et al., 1994). This is thought to rely on the attention-narrowing effect of stimulants, i.e., ...
AliceD's user avatar
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8 votes
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Can you get sad by sniffing onions, just like you can get happy by forcing yourself to smile?

I assume you're referring to the experiment by Strack, Martin, and Stepper (1988) in which people rated a cartoon as funnier when they had to hold their face in a smile shape by gripping a pencil in ...
PhiloT's user avatar
  • 361
7 votes

What is "Attention" in terms of brain activity?

Firstly its important to note that attention basically the outcome of automatic processes, although attention may easily be directed by conscious choices. As a previous poster mentioned the ...
Comte's user avatar
  • 1,196
7 votes

Can LSD connect sensory regions in the brain?

The phenomenon you are referring to is called synesthesia, which can be defined as (Sinke et al., 2012): Synesthesia (Greek: syn = together; aesthesis = perception) is [...] a crossing of sensory ...
AliceD's user avatar
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7 votes

What is the computational role of the cortical column?

Cortical columns are groups of neurons in the brain that are oriented perpendicularly to the cortical surface. Cells within a column respond to the same stimulus property (Fig. 1). For example, ...
AliceD's user avatar
  • 20.7k
7 votes

Is quick left brain vs right brain test fake?

Without references, you state: In this picture if you noticed her rotating clockwise you are right brain dominant. We discourage asking questions on this site (or in science in general) which ...
Steven Jeuris's user avatar
  • 3,523
6 votes

Can humans keep track of two unrelated rhythms?

I never thought that my Bachelor Thesis would ever come in handy. Thank you for this question! Short answer No, you cannot keep up two unrelated rhythms in a stable coordinated fashion when tapping ...
Robin Kramer-ten Have's user avatar
6 votes
Accepted

Is the brain inherently social?

The "social brain" concept likely originated with Robin Dunbar's Social Brain Hypothesis, proposed in 1998. However, Dunbar was not suggesting that the brain has dedicated "social modules". Rather, ...
Arnon Weinberg's user avatar
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6 votes
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Can humans be reduced to a function?

I think the key concept to tackle this question is to consider the concept of abstraction. Abstract models are generalized models of some kind "reality" that we are interested in, with the aim to ...
Alex's user avatar
  • 348
6 votes

Can humans be reduced to a function?

For a review of how this question is debated in Cognitive Science, search for Searle's Chinese Room Thought Experiment. In the Chinese Room Thought Experiment, Searle argues there is something ...
Seanny123's user avatar
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6 votes
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Can normal brain activity arise from no (or random) brain activity?

There is no such thing as "zero" activity in regards to brain circuits. Even when you record neurons from a brain slice in vitro, you have spontaneous network activity. There is a few studies that ...
Philippe's user avatar
6 votes

How does the brain structure 3D visual data?

This question cannot be answered in the form in which you asked it both because of the limits of current neuroscientific theories and methodologies when it comes to determining the structures of ...
Larry Muhlstein's user avatar
6 votes

How often are complex networks and graph theory useful in computational neuroscience?

In my opinion as a computational neuroscience researcher, graph theory has not made major inroads into computational neuroscience because we don't have good evidence for what graphs characterise ...
Dylan Richard Muir's user avatar
6 votes
Accepted

What are the advantages of 2AFC in a psychophysical discrimination task?

What makes a task a two alternative forced choice task? I am beginning my answer with this question because there is a general misconception about what 2AFC really means. Many people believe that ...
kindredChords's user avatar
6 votes

How does the neocortex distinguish between perception and imagination?

Short answer Perception and imagination in the visual system use pretty much the same neural machinery, but in opposite directions - perception goes bottom-up, from the periphery to the central ...
AliceD's user avatar
  • 20.7k
6 votes
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When your two eyes disagree sharply

Binocular rivalry refers to a situation where you present different images to each eye (often in the context of an experiment, although you also point out some quick 'at home' ways to achieve this), ...
Bryan Krause's user avatar
  • 7,436
6 votes

Why can't human thoughts be stored in metals?

First off, you mention 'metals'. What is a metal? In common speech, a metal is a shiny material that conducts electricity and heat well. In physics, a metal is regarded as a substance capable ...
AliceD's user avatar
  • 20.7k
5 votes

Is there evidence to suggest that music can trigger release of a particular kind of neurotransmitter?

Music is known as a form of an abstract stimulus, which can arouse feelings of euphoria, similar to tangible rewards that involve the striatal (corpus striatum) dopamine system. In a study, ...
Ebbinghaus's user avatar
5 votes

Can LSD connect sensory regions in the brain?

In a recent study, brain scans revealed that people under the influence of LSD experience images through information drawn from many parts of their brains, and not just the visual cortex at the back ...
John Slegers's user avatar
5 votes

What leaps in technology would be needed to scan the total state of the human brain?

Your question can be reduced to "What level of detail do we need to know about a brain to be able to simulate it?" The answer to this question is we have no idea. The Blue Brain project has bet on ...
Seanny123's user avatar
  • 8,853
5 votes

Can we identify specific emotions on the basis of fMRI scans?

From meta-analyses that include musical emotion inductions, there is not much evidence that we can reliably distinguish between emotions in the brain, independent of the emotion induction procedure or ...
mrt's user avatar
  • 4,388
5 votes

Efficiency of multitasking depending on task difficulty

First, it is important to disambiguate between concurrent multitasking and sequential multitasking (Salvucci et al, 2009). In a recent publication I present a short overview on related work of both (...
Steven Jeuris's user avatar
  • 3,523
5 votes

What does "non-linear processing" mean, exactly?

The idea of linear/non-linear in neuroscience is the same as in mathematics. A process $f(x)$ is linear if $f(\alpha x) = \alpha f(x)$ and $f(x+y) = f(x)+f(y)$ for all $x$, $y$, and $\alpha$.
StrongBad's user avatar
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5 votes
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How are the brains of mathematicians different from typical people?

Psychology The first major source I would go to is the Study of Mathematically Precocious Youth (SMPY). It is a major longitudinal study following several cohorts of mathematically talented ...
Eff's user avatar
  • 700
5 votes
Accepted

Is there a specific term for the notion of storing "algorithms" in human memory?

This is called procedural memory. In textbooks, memory is often broken down into a hierarchy of types. Note that this taxonomy is primarily a guide to language use - ie, how types of memory are ...
Arnon Weinberg's user avatar
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