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Is Fluid Intelligence Dropoff With Age an Established Fact?
The picture below represents the idea that fluid intelligence declines with age. Is this commonly accepted as true and established, even if fitness/learning levels do not decline?
VSO
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How are people able to wake themselves up after a pre-specified amount of time?
Auto-suggestion seems to work. Several people I know seem to be able to tell themselves "I'll wake up after 'N' hours/minutes", and do so within a minute or two of that duration.
I thought for a moment that it might be that the duration defined is…
Everyone
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Origin of the SEEV Model of visual attention distribution
What's the original source of the SEEV (Salience Effort Expectancy Value) Model for predicting the distribution of visual attention? I've seen it mentioned in many papers and presentations but everyone of them lacks a reference to the source of this…
deemel
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What are the effects of alcohol on muscle memory?
Muscle memory (also referred to as "motor memories") is a form of procedural memory, which is a form of implicit memory. I'm particularly interested in trained tasks like throwing a dart, shooting a ball in foosball, or touch typing, which as far as…
Steven Jeuris
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How similar are human brains within the same haplogroup?
I've read about neuroscience and listen to talks like this one Juan Enriquez: Will our kids be a different species, I'm starting to realize that humans are not all the same, and are instead quite different.
My question is: how "different" are humans…
Alex Stone
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How to measure group differences incorporating reaction time / accuracy trade-off?
In a psychological experiment I am measuring subjects' reaction time as well as their error rate. Now I would like to compare two groups (males & females). There might be a bias in the sense that subjects who respond within a small reaction time…
jokel
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Do lucid dream eyemasks work?
There seems to be a few eyemasks available that claim to help the wearer achieve lucid dreaming. For example:
The NovaDreamer lucid dream mask works by detecting Rapid Eye Movement
(REM) while you are asleep and dreaming. The mask then flashes…
Douglas S. Stones
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Is post-traumatic stress disorder preventable?
Victims of abuse, people exposed to violent situations repeatedly, and people in war zones can develop post-traumatic stress disorder (PTSD) as a result. PTSD is very common and has lifelong effects on affected individuals.
Can people exposed to…
Ella
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What happens when a person "imagines" how food could taste like just from looking at it?
What processes are triggered by imagining the taste of food (let's assume it's sealed so that its smell doesn't reach the test subject's nose) only by looking at it, based on memories of food with similar color, shape, texture and size?
If the food…
user1306322
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What is the distribution of performance in academic programming subjects?
On Programmers SE there is a popular question about scientific evidence for whether some people either are or are not able to program.
One person cites an unpublished manuscript by Dehnadi and Bornat (2006) who state in an abstract:
All teachers…
Jeromy Anglim
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Computational Model Linking Neural Activity to Behavior
A big question in neuroscience is how neural activity represents knowledge. We can use modelling to explore how different levels of neural activity- subthreshold currents, action potentials, local field potentials, etc.- relate to one another and,…
mac389
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How does the Forgetting curve change after repeated exposure to the same item we would like to memorise?
There has been a long debate going on on the actual form of the Forgetting curve, but my question will be about its change when we review a previously memorised fact - Unfortunately, I couldn't seem to find too much information (or perhaps I used…
FloriOn
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Does teaching a bird an artificial task like eating from a feeder hurt its performance in the wild?
Can training a wild animal through operant conditioning somehow cause the animal to forget or be unable to perform tasks which it had perviously learned?
Is it likely that training wild animals through operant conditioning would somehow cause them…
Josh
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Do the motivations and fears behind Enneagram have any scientific reasoning?
Background
The Enneagram personality typing system defines set of motivations and basic fears for its nine personality types among people.
The system seems to be aimed at personal development of a person, and uses various approaches for the same…
Bharadwaj Srigiriraju
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Is there a correlation between facial features and personality?
Background: From block buster movies, to Snow White and the Seven Dwarf's, characters with certain personality and mental traits are portrayed looking a certain way. For example, the clumsy one has big ears or the antagonist has dark hair and the…
Greg McNulty
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