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

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6 views

Control group VS. norms

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 ...
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16 views

I'm doing a research design paper on “pheromones” [on hold]

It's rather simple, really. We are required to have 2 IV's with their levels and op. definitions and a DV. My Dependent Variable is attraction via smell, by IV1 is Time of month (for menstrual cycle) ...
4
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1answer
44 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, ...
2
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0answers
7 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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0answers
6 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 ...
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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
36 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 ...
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8 views

What would be a good headset with microphone for cognitive psychology experiments?

I'm looking for a comfortable headset with good sound and a decent microphone attached to run cognitive psychology experiments, but I'm not sure what to buy. Subjects will have to wear it for 1h30, ...
2
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1answer
28 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 ...
5
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1answer
3k views

What is a “delayed match-to-sample task”?

This question talked about how a "delayed match-to-sample task" can be used to measure an animal's working memory. What is a delayed match-to-sample task and how can it be used to measure working ...
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 ...
5
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3answers
77 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 ...
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0answers
16 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 ...
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0answers
13 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 ...
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10answers
4k views

How can I create computer based psychology experiments using OS X?

I've used E-prime to create computer based psychology experiments (you know, the kind where you for example show a number of pictures to the participant and record their responses to them, for example ...
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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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0answers
68 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 ...
2
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3answers
69 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 ...
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1answer
51 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?
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3answers
309 views

Analysis of parameter estimates from Ratcliff diffusion model

I would like to analyze a dataset in which subjects' reaction time and error rate have been recorded. In order to account for potential speed-accuracy trade-off I am planning to make use of the ...
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8answers
6k views

Open source software for running Internet psychological experiments that collect reaction time data

I've often used Inquisit to run psychological experiments online. The software enables delivery of stimuli (e.g., text, images, etc.) and collection of reaction times. Obviously general purpose ...
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6answers
1k views

Software for online psychological experiments that don't require users to download anything

We are currently using Inquisit to conduct Internet experiments. Since it is not compatible with non-Windows systems, we lose a lot of potential subjects. Ideally, we would like to implement something ...
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0answers
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How are hypotheses or 'regions of interest' selected in an exploratory ERP study?

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 ...
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1answer
53 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 ...
4
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0answers
28 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
119 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 ...
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2answers
115 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 ...
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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
51 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
58 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 ...
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11answers
2k views

Are there any cognitive test (or test suites) available on the iPad?

I find the IPad to be a great piece of hardware that is easy to bring along and that has an intuitive touch interface. This would make it an ideal platform for many cognitive tests such as n-back. As ...
6
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2answers
120 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 ...
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 ...
4
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1answer
120 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 ...
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2answers
390 views

Fitting a psychometric function when data does not lend itself to a sigmoidal fit

I'm fitting a psychometric function to a range of data. The majority of this data lends itself to a sigmoidal fit (i.e. participants can do the task), but some individuals are absolutely unable to do ...
3
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1answer
36 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 ...
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0answers
60 views

Description of an EEG experiment

I am working on Brain-Computer interfaces. In my project we try to control the movement of a robot in three directions, namely forward, right and left. We have done an EEG experiment where we have ...
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
40 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
263 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: ...
7
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1answer
138 views

How to set up a binocular rivalry experiment which splits a single image in two separately controlled ones?

The question is about the actual physical setup and steps needed to take in order to experiment with the phenomena. I found a tutorial on jove.com, "How to Create and Use Binocular Rivalry", and it ...
2
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1answer
484 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 ...
7
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1answer
101 views

How to efficiently get a sense of the meaning of a score on a non-aptitude test that you encounter in a journal article?

Context: When reading research articles in psychology, you often encounter new non-aptitude self-report psychological tests (e.g., measures of personality, well-being, psychopathology, learning style, ...
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2answers
437 views

Which statistical tests to use when analyzing NASA TLX?

The NASA Task Load Index (NASA-TLX) is a subjective, multidimensional assessment tool that rates perceived workload. A set of different scales (Mental Demand, Physical Demand, Temporal Demand, ...
7
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1answer
118 views

Are there any open task sets available to assess workload using secondary task measures?

Performance on secondary tasks next to a primary task is sometimes used to assess mental workload (Ogden, Levine and Eisner, 1979). For example, the Stroop test as a secondary task has been evaluated ...
4
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1answer
155 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 ...
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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 ...
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 ...