Recent content by Schwann

  1. Schwann

    I Linearity of power spectral density calculations

    Thank you for your answer. What I meant is not computing PSD based on the same set of time points with different order. Whan I meant is the following. Scenario 1. I have a long time series made of concatenated epochs. Then I compute PSD. Scenario 2. From the same epochs I compute the...
  2. Schwann

    I Linearity of power spectral density calculations

    I have a question related to linearity of power spectral density calculation. Suppose I have a time series, divided into some epochs. If I compute PSD by Welch's method with a time window equal to the length of an epoch and without any overlap, I obtain this result: If I calculate the...
  3. Schwann

    I 'Conservative' p-values adjusted

    Hello everyone! Could anybody recommend some strategy of p-values adjustment, as the distribution of my p-values indicates the presence of a big number of false negatives? Usually p-values are adjusted in order to overcome Type 1 errors (e. g. FDR or FWER estimation), but what I need to do is...
  4. Schwann

    B Can PDF values be equal to zero at some given points?

    Suppose we have a function which looks like this: It seems like it meets criteria of probability density functions: this function is asymptotic to zero as x approaches infinity and also it is not negative. My question is: if at some points this function reaches zero (as I have shown above)...
  5. Schwann

    A Is quantum theory a microscopic theory?

    But we reveal the "existence" of microscopic atoms via macroscopic devices...
  6. Schwann

    Is there any negative impact of music on the brain?

    Doesn’t everything our brain perceives or processes affect how we “think”? :)
  7. Schwann

    Personality and spending Habits, vice/versa

    I see this type of conclusions as rather obvious. Personality traits are derived from behavioral patterns. Thus, behavioral patterns such as spending habits can reflect personality traits. More interesting question here is whether spending data is a high predictor or not. As the authors of the...
  8. Schwann

    Is there any negative impact of music on the brain?

    I don't think that listening to music (even for a long time) "overstimulates" your brain. Just think about amounts of external stumuli your brain processes every day and every second! Usually it redistributes its resources, "ignores" irrelevant information, sometimes suppresses intensive or...
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