For questions about experimental and theoretical methods, procedures, and tools used while conducting research in the cognitive sciences.

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6 views

fmri onsets, missing pulse logs - what is the minimal information necessary to be analyze experiment?

Very basic, probably stupid question, but help is very much appreciated. I am running an fmri-experiment (block design), which was programmed in java (not by me) and has been used before. Trying it at ...
2
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0answers
15 views

EEG electrode cluster selection

Is there a good review paper on electrode selection in EEG analysis to avoid the problem of double dipping (Kilner, 2013)? This is a well documented issue in neuroimaging (Kriegeskorte et al, 2009; ...
2
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0answers
25 views

Short validated measure of cognitive ability suitable for online experiment on the effect of emotion on ability test performance

I am currently writing my dissertation which will examine the impact of emotion on cognitive ability. I plan to use two test groups to test my hypothesis, one which is primed to feel happy the other ...
7
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3answers
142 views

Differential equations in psychology [duplicate]

I am wondering (and searching with no success) if there are any examples of differential equations in psychology? I mean, no tutorial explaining what is differenetial equations or even partial ...
6
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1answer
39 views

Why compare a target group to a control group when population norms are available?

I am reading now many studies about juvenile offending and delinquency, and there are always compared offenders´ results from different tests (for example personality, IQ) with control group. I am ...
4
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1answer
57 views

In what order do you preprocess EEG data?

I am fairly new to EEG research and I am unsure what the best ordering is for preprocessing data. Do you correct for baseline and filter the data before you go on with artifact rejection/correction, ...
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0answers
7 views

Creating non-linear neuron model from linear and actual rates

In "Theoretical Neuroscience" by Dayan and Abbott, section 2.2 "Estimating Firing Rates", it describes how by using a linear model in combination with averaged experimental firing rates you can ...
2
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0answers
10 views

How to intelligently resolve WinTabMex error in Psychtoolbox on Windows 7?

While piloting a task in psychtoolbox and exiting via (ctrl-c --> sca), I receive this error: Error using WinTabMex Tried to initialize WinTab, but it is already initialized! Call code 1 (...
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1answer
17 views

Which commodity technologies offer useful neuroimaging data?

Do any commodity technologies exist that offer useful neuroimaging data? By commodity I mean lowish cost and not requiring specialist technicians to run. By useful I mean able to reliably provide ...
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0answers
7 views

the use of life grid technique to overcome recall bias in a case control study

Can anyone give insights into the use of the life-grid technique to overcome recall bias in a young adult population? My study requires participants (aged 19 to 30 years) to recall information of ...
3
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1answer
37 views

Ground a student survey in academic literature

I'm planning to do a survey with students (age around 16) with questions/answer-possibilities that have been 'proven' to be significant indicators of student success/good grades. So, I'm not really ...
2
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1answer
32 views

Self-study guide for translating a psychological scale

I am conducting research on Arab homosexual men. I want to translate to Arabic and validate psychological scales like scales for gender dysphoria, internalized homophobia scales ..etc first, How to ...
2
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2answers
32 views

Discovery of “Functions of Brain”

As far as I know, Physical Experimentation of Human Brain is not possible. So how does people come up with the idea that different parts of brain is associated with different specific functions? and ...
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0answers
17 views

Is truth serum used in any psychiatric or psychoanalytic practices?

Is sodium thiopental (truth serum) used in any psychiatric or psychoanalytic therapies? I presume it is legal for use, since it is Schedule III, and it is administered in surgeries. It clearly has ...
1
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0answers
14 views

Quest procedure convergence after random answers

I use Quest procedure to find threshold for stereo disparity changes of a stimuli. I use a C++ implementation derived from the one in Psychotoolbox and I wonder whether the behaviour I observe is ...
5
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3answers
79 views

Recent psychophysical studies using the “Method of Adjustment”?

The Method of Adjustment, devised by G.T. Fechner, is one of the three classical psychophysical procedures used to examine perceptual performance. It came to fame through early studies of visual ...
2
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0answers
38 views

What tradeoffs are there between internal and external validity?

I was reading through an article about research design. The authors gave an example on the relation between internal and external validity which I thought might be an important area of consideration ...
2
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3answers
84 views

How does one identify relevant variables when performing research on perception?

Suppose, hypothetically, that I wanted to do a blind taste test into preference for Coke or Pepsi. I organize hundreds of volunteers and find that a certain group prefers one and another group the ...
3
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1answer
52 views

Does the International Affective Picture System (IAPS) contain weapon stimuli?

I'm looking to use the IAPS for my research, but I specifically need to use images of/or containing weapons. Does anyone know if IAPS has any such stimuli, and, if so, roughly how many?
2
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0answers
69 views

Do ADHD exams necessarily test ADHD or merely ADHD-PI?

I read on reddit and Wiki that the types of ADHD are ADHD-PI (predominantly inattentive), ADHD-C (combined) and ADHD-PH (predominantly hyperactive or impulsive). In a psychological test intended to ...
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0answers
17 views

How are hypotheses or 'regions of interest' selected in an exploratory ERP study? [duplicate]

For instance, in a research area where there are no directly relevant ERP studies to provide a rationale for specific hypotheses. I recall hearing about data-driven selection of components to analyse,...
4
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0answers
31 views

EEG data processing: large data file seems empty

We have been running an experiment trying to collect ABR data using the Brainvision EP-PreAmp and Actichamp system. We ran several successful tests with short versions of our experiment, about 10-15 ...
2
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1answer
133 views

What can clinical psychologists do that psychiatrists can't do?

From Yahoo Answers: For example, I know that psychiatrists can prescribe medicine and psychologists CAN'T, but are there any things that clinical psychologists are specialised in that ...
4
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1answer
54 views

How to examine person's awareness of a certain topic?

I am conducting a case study on the topic of refugees and asylum seekers. My particular interest is: How aware is my test subject of the reasons (political persecution, famine, war, ...) why these ...
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2answers
129 views

How do you analyse visual analogue scales with an ambiguous response?

For example, I might ask participants to complete a visual analogue scale for pain. They would be given a line that is 100mm long, and one end says 0 (No pain) and the other end says 100 (worst ...
3
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2answers
1k views

How is doing a manipulation check different from doing the analysis on the main dependent variable?

How is doing a so-called manipulation check (i.e. checking to see whether the different groups actually differ for different levels of the independent variable) different from doing - as a main ...
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1answer
53 views

How does one respond to an ADD/ADHD diagnosis of one's self or one's child? [closed]

I read: Is ADHD even a thing? This kind of question can be offensive to some. The same kind of thing can be applied to other conditions: Is depression even a thing? Or are they just ...
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1answer
59 views

How do you make psychology experiments? [closed]

Have you used Inquisit, E-Prime, DirectRT, or Qualtrics to make psychology experiments? I worked in a psychology lab as a programmer and I thought these programs felt very outdated and not user ...
2
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0answers
8 views

Is perceived time compressed or expanded while dreaming? (or does it match reality) [duplicate]

I often dream long extended dreams. Sometimes I wonder if the timeline of the story of my dream occurs compressed, in a moment, or other times extended slowly over a long duration. Is there any way ...
7
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2answers
125 views

How do cognitive scientists measure creativity?

Einstein said once something like creativity is more important than intelligence. Intelligence as it is measured is really one's speed and efficiency at processing information. How one processes the ...
3
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1answer
37 views

Tests of Semantic Memory suitable for 10 to 18 year old

I'm trying to find a test of semantic memory for students. We're working on a programme to explore the impacts of exposure to nature on a student's academic abilities (hoping to pique teachers ...
4
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1answer
139 views

Combining unbiased hit rates

I am analysing data on an emotion perception task, where participants must decide if a given face is happy, sad, angry or fearful (essentially a forced choice between 4 options). I am confident that ...
7
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1answer
47 views

Classical conditioning paradigm for hippocampal learning

I wanted to know what a suitable classical conditioning experiment would be to analyze learning and memory capabilities in rodent models with respect to hippocampal long-term potentiation (LTP). For ...
4
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1answer
43 views

Is there a way to have strangers tag my images?

I would have liked to know what thoughts people get from various images, so that I could trigger targeted thought patterns with images. An easy way to do this would be if I could find an online ...
4
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1answer
42 views

How did Fechner justify the assumption that the just-noticeable-difference in sensation is constant?

As stated here on Wikipedia: 1 Weber's law states that the-just-noticeable-difference (JND) of an intensity of a stimuli divided by the intensity of that stimuli is always constant. Mathematically: ...
7
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2answers
285 views

What are some examples of controversial themes in psychology?

There are a number of themes that are controversial (provoke debate, are unsettled, polarize opinion, or are reflected by a range of positions) in psychology. One example involves nature vs. nurture: ...
6
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1answer
224 views

The mind as a state of matter or physical system?

What examples of attempts to formalize a principled physical basis for consciousness and/or a general theory of the mind exist? I read a fascinating ArXiV preprint last year called Consciousness as a ...
5
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1answer
318 views

How can we realize when a sociological question is impossible to answer?

In my language there is a famous common sense statement which tells the populations are swinging back and forth from one extreme to the other. The idea behind is that, at a sociological level, the ...
3
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1answer
53 views

Where can I find stimuli for steady-state visually-evoked potentials?

I am a student working on a project which deals with Steady State Visually-Evoked Potentials (SSVEP) Stimuator. Does anybody know where can I find stimuli (checkerboard or single graphic) as a video ...
4
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0answers
34 views

How to obtain well-written demographic items?

I've noticed over the years supervising student projects that it is actually surprisingly difficult to write good demographic items. Specifically, I'm thinking about questions related to gender, age, ...
2
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2answers
107 views

How to know whether a methodological technique is quantitative or qualitative?

How do you classify NASA TLX, ANOVA, Matched Pair T-Test, Self-Efficacy Scale, and System Usability Scale? Are these types of data analysis considered quantitative or qualitative? Please answer ...
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0answers
78 views

Before and After survey. How to achieve this online [closed]

I was recently given a project by my professor. I am to provide a Before and After survey regarding sickle cell anemia. One survey is to be provided before a video that talks about sickle cell anemia. ...
10
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2answers
2k views

What is the relation between measures, constructs and concepts?

It is uncontroversial to say that the cognitive sciences do not exclusively deal with directly observable phenomena, but nonetheless aim to study the physical causes of behavior and cognition ...
5
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1answer
153 views

How can items from a general self-esteem/efficacy measure be changed to measure context specific self-esteem/efficacy?

I am very interested in a survey employing a Likert type scale in my research. I have come across the Rosenberg Self-Esteem Scale. I would like to use this scale to get a sense of how subjects feel ...
7
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4answers
1k views

How valid are reaction times collected from online studies?

Online studies promise the possibility of greatly increased numbers of and variability in populations to study, but there are many potential concerns and need for validation, and diving in head first ...
2
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1answer
555 views

What are the pros and cons of the hot sauce paradigm to measure aggression?

The hot sauce paradigm is a way to measure aggressive behavior in the lab. Participants are asked to give a portion of hot sauce to another person (who they know hates hot sauce) and who will have to ...
4
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1answer
166 views

How to measure precision in classical test theory framework?

What methods or approaches exist or might be developed to measure precision of measurement in a classical test theory framework? Standards for Educational and Psychological Testing (American ...
4
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1answer
20 views

Is there a downside to using more than the typical 20/40 trials in an IAT?

Most resources mention using 20 'practice' trials categorizing both targets and attributes, followed by 40 'real' trials categorizing both targets and attributes. Note that this is after practicing ...
3
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2answers
101 views

Is there a database of disgusting images for stimuli for experimental study of disgust?

I'm looking for a set of images that evoke a disgust reaction. In particular, I'm looking for disgusting objects (e.g. feces, maggots). Is there a database of images like this? It would be especially ...
7
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1answer
121 views

What are the most used statistical methods in WM research besides (generalized) linear modeling?

I mean, by cognitive psychologists. I skimmed over a few articles from Journal of Cognitive Neuroscience and Trends in Cognitive Science and concluded that ANOVAs and t-tests are mostly used (without ...