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
5 votes

Is there a term in psychology for when a tool is perceived as an extension of your body?

Short answer Possible interesting terms are: distal attribution (externalization) body transfer illusion (rubber hand illusion) embodiment Background This is a very interesting, yet difficult ...
AliceD's user avatar
  • 20.6k
5 votes
Accepted

What regulates the strength of motor signals?

Short answer Muscles are controlled by motor neurons in the spinal cord. The number of motor neurons that fire, as well as their individual firing rates govern the control of muscle force. Background ...
AliceD's user avatar
  • 20.6k
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
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
Accepted

Effect of variability due during motor skill training

According to "Motor Skills Are Strengthened through Reconsolidation" (available through SciHub) adding variability to practice sessions increases learning speed. In the paper, patients were directed ...
Seanny123's user avatar
  • 8,853
4 votes

How do the motor system and Central Pattern Generators interact?

Descending inputs onto the central pattern generating circuit provide stimulus in the form of neuromodulatory chemicals and synaptic currents (Marder 2012). The leech heartbeat pacemaker and the ...
Alec Hoyland's user avatar
4 votes
Accepted

How are movements stored in the brain?

Forgive me for not including any scientific references (I've been out of the human movement science for a while), but it is believed that movements are saved and executed in a "goal-directed" way. It ...
Robin Kramer-ten Have's user avatar
3 votes

Resources for learning how best to learn fine motor skills

I think the search term you're looking for is 'skill acquisition', but it's a super broad area. There's relevant stuff in memory, second language acquisition, sports science, and teaching surgeons ...
steveLangsford's user avatar
3 votes

How to specify the quickest movement a human can do based on MTM standards?

I don't know about any MTM standards or benchmarks, but motor response latencies have been assessed in many studies. Importantly, auditory response latencies are smallest, then tactile followed by ...
AliceD's user avatar
  • 20.6k
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
3 votes
Accepted

Scientific way to prove you are ambidextrous, right handed or left handed?

I don't know whether the following has been used to distinguish natural from "corrected" right handers, but following up on the suggestion from @user3169, the Edinburgh Handedness Inventory contains a ...
Justin's user avatar
  • 296
3 votes

Can you learn a skill by observing someone else?

Watching others perform a skill serves as both instruction and visualization practice. The instruction can provide the beginner with a wealth of information that they lack, when starting a skill. It ...
John Yetter's user avatar
3 votes
Accepted

Would it be worthwhile/has anyone tried to produce a machine that measured intoxication by pupil dilation while doing arithmetic?

This has been studied. Via https://www.sciencedirect.com/science/article/pii/S0379073820304217 : Cannabis users show consistently weakened responses in pupillary light reflex tests. The method is ...
belkarx's user avatar
  • 301
2 votes

Recording motor-evoked potentials (MEPs) in response to transcranial direct current stimulation (tDCS)?

Compared to TMS which is usually brief and high-intensity, tDCS stimulation protocols are fairly weak and long-duration. This protocol doesn't elicit MEPs by itself, because you need a stronger ...
Bryan Krause's user avatar
  • 7,376
2 votes
Accepted

What models/mechanisms exist for the brain to chain movements together?

In the paper "Control of automated behavior: insights from the discrete sequence production task" a task similar to piano playing is discussed. The task, shown in the figure below, involves a user ...
Seanny123's user avatar
  • 8,853
2 votes

"Raise your game" studies

According to Tenenbaum et al. (1995) the effect may be opposite. In their study, they had people, who where normally not engaged in a training program for strength, tested on their knee-extensor ...
Robin Kramer-ten Have's user avatar
1 vote
Accepted

Can signals from the prefrontal cortex alone trigger a readiness potential in the pre-supplementary motor area?

The original author is not making a claim one way or another for logical AND or logical OR within this context. The statement the pre-supplementary motor area (preSMA), which in turn receives ...
Bryan Krause's user avatar
  • 7,376
1 vote
Accepted

How does modulation of the activity of an afferent neuron lead to increase in MEP's?

The passage you reference is talking about connections within the motor cortex in the brain. Afferent/efferent can be confusing terminology in the brain. In the periphery, the terms have clear ...
Bryan Krause's user avatar
  • 7,376
1 vote
Accepted

Latency between actual neurons firing and muscles response in open and close fist experiment

Short answer Reported motor delays between brain activity and motor response are in the order of 6 - 9 ms. Background I found a study where the authors used deep brain stimulation electrodes ...
AliceD's user avatar
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