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5 votes

What is the evolutionary advantage of being embarrassed?

Marks and Nesse investigated evolutionary causes of anxiety disorders and reported about embarrassment in particular: Social threats evoke responses that promote group acceptance, for example, ...
Wuschelbeutel Kartoffelhuhn's user avatar
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

Can you practice and improve physical activities only by thinking?

Yes. In one famous experiment,a college basketball team was divided into three groups. Group 1 was supposed to show up to practice shooting baskets for a week on a daily basis. Group 2 was asked to "...
Tom Au's user avatar
  • 612
5 votes

Do ADHD drugs harm the brain?

This section from the Wikipedia page on Neuroplasticity indicates (emphasis mine) Reviews of MRI studies on individuals with ADHD suggest that the long-term treatment of attention deficit ...
Marc.2377's user avatar
  • 300
4 votes

Does masturbation in men negatively affect cognitive processes?

Masturbation in men or women does not negatively affect cognitive processes As I pointed out in another question in Health.SE, masturbation was a diagnosable psychological condition until DSM II in ...
Chris Rogers's user avatar
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4 votes
Accepted

Can you practice and improve physical activities only by thinking?

My general understanding is that thinking about executing the motor tasks in your mind can improve skill. It's not as good as actually practicing the task. I'm not sure exactly how conclusive the ...
Jeromy Anglim's user avatar
4 votes

Why can't we use 100% of the brain in a certain moment?

Neurons are extraordinarily expensive to make, maintain, and use (Laughlin et al, 1998; Stone 2018). Half of a child's energy budget, and a fifth of an adult's budget, is required just to keep the ...
James V Stone's user avatar
4 votes

Why can't we use 100% of the brain in a certain moment?

Unlike a computer, where the circuitry is information agnostic (it can represent anything digital), neural networks (both biological and artificial) are not. The organization of neurons (their ...
Arnon Weinberg's user avatar
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4 votes
Accepted

Provable ROI for call center rest periods?

This is the paper you would want to read on this topic. The paper empirically compares four modes of managing interruptions. It is a great (and long) read so I'll try to summarize the bit for you: ...
Robin Kramer-ten Have's user avatar
4 votes

Do ADHD drugs harm the brain?

If one was to take a 30mg dose once a day for 50+ years, would it damage brain function at all? You ask a very good question, but I'm going to rephrase it for you: Is the chronic administration of ...
faustus's user avatar
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4 votes
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Why do I always screw up when people are watching?

There are quite a few studies on this, but a nice recent one is this: Lee, Taraz G., et al. "Limiting motor skill knowledge via incidental training protects against choking under pressure." ...
steveLangsford's user avatar
3 votes

If 10 words are presented at the same time, is it still considered a 'free recall' test?

Memory recall is generally tested with one of three paradigms: serial, cued, and free. In serial recall the subject must recall the items in a specified order (e.g., forward or backwards). In cued ...
StrongBad's user avatar
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3 votes

If 10 words are presented at the same time, is it still considered a 'free recall' test?

Free recall refers to not being given exemplars during the retrieval task. For example, multiple choice would be called recognition here, not recall. The format of the presentation such as ...
Cameron Brick's user avatar
3 votes
Accepted

Why do I perform better at rhythm games after a long period of not playing?

Short answer Long-term memory formation (consolidation) takes weeks, or even years. Background Unfortunately my observations haven't been published yet, but an interesting thing I see with listening ...
AliceD's user avatar
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3 votes
Accepted

Does distraction cause us to skip to the next step in a motor plan?

Q: Does distraction cause us to skip to the next step in a motor plan? A: It depends on the processes in progress, characteristics of the subject and characteristics of the signal to produce ...
hexadecimal's user avatar
  • 1,069
2 votes

What is the distribution of performance in academic programming subjects?

According to the research of Elizabeth Patitsas, the distribution is not bimodal. She sampled 778 University of British Columbia CS courses, as well as 5 University of Toronto CS courses and found the ...
Seanny123's user avatar
  • 8,853
2 votes

What is the distribution of performance in academic programming subjects?

(This is a bit brief given the complexity of the question. I'll expand later if I can summarize more of the findings.) Probably the only thing which is certain is the high-failure rate in CS1-level ...
against very long user names's user avatar
2 votes

Can intense multitasking improve fluid intelligence/working memory?

In my mind the dual-n-back (aka Jaeggi training) is still controversial. A meta-analysis by Jaeggi and co-authors (2015) found in favor of their original paper, but others have gone on record to ...
against very long user names's user avatar
2 votes
Accepted

How is "being in a flow" explained cognitively?

There is a six-step breakdown of 'the flow' or 'zone' from it's creator Mihály Csíkszentmihályi Intense and focused concentration on the present moment Merging of action and awareness A loss ...
Reed Rawlings's user avatar
2 votes

Does the meta-analytic literature overestimate the relationship between conscientiousness and job performance?

I'm posting a summary here (thanks to @DJ Sims for directing me to the paper of interest). Kepes and McDaniel (2015) re-analysed data from an existing meta-analysis. The existing meta-analysis had ...
Jeromy Anglim's user avatar
2 votes

Can lucid dreaming detract from the recuperative effect of REM sleep?

Lucid dreaming is a half-way state between normal REM sleep and wakefulness. Lucid dreaming probably has less of a recuperative effect than normal REM sleep. On the other hand, there is usually less ...
Angela Pretorius's user avatar
2 votes

Pygmalion effect and negative expectations

Overall one can't deny the influence of expectations. After reading more about the matter, I'd say that Pygmalion effect (or Rosenthal effect) only speaks of positive expectations others might have on ...
Tiago Peres's user avatar
2 votes
Accepted

Which of IQ or personality traits best predict job performance?

You can find a recent updated review in Sackett et al (2022). It provides a range of validity estimates from r = .31 to to r = .36 for cognitive ability tests and r = .19 to r = .22 for ...
Jeromy Anglim's user avatar
1 vote

Why do I always screw up when people are watching?

I think the answer is pretty easy: stress. As Wikipedia states it, When people think the demands being placed on them exceed their ability to cope, they then perceive stress. The player might ...
stackzebra's user avatar
1 vote

Efficiency of multitasking depending on task difficulty

The effects of multitasking are apparent even for the most trivial tasks. For example try walking and eating a sandwich at the same time, you will walk slower and more irregular. The multitasking ...
DesignerAnalyst's user avatar
1 vote

Yerkes-Dodson Law and Drugs

I think in this case, you should look at 2 graphs of optimal performance. So one inverted bell curve (Yerkes-Dodson Law)for the stimulant, and another for the 'downer'. So in this case, each has their ...
Divya's user avatar
  • 11
1 vote

For an average adult, in general, if one knows they will wake up in the middle of a cycle--is it better to go to bed later?

As your contacts have already pointed out, there is no research on this specific question. But from what I have observed (both in patients with sleep disorders with whom I have been working as well as ...
user20611's user avatar
1 vote

For an average adult, in general, if one knows they will wake up in the middle of a cycle--is it better to go to bed later?

As a precursor, even if a stringent sleep schedule is absolutely followed, one still needs to practice other good sleep hygiene habits: avoiding blue light (or using a filter for screens), exercising ...
adamaero's user avatar
  • 390

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