Measuring, estimating, and understanding the psychometric function: A commentary

Klein, Stanley A.

doi:10.3758/bf03194552

Cited by 409 publications

(396 citation statements)

References 36 publications

Supporting

Mentioning

391

Contrasting

Unclassified

Order By: Relevance

“…2). This approach to fitting psychometric curves is more general as it helps to estimate left/right choice biases (64). The psychometric function had the following form:…”

Section: Methodsmentioning

confidence: 99%

Adaptable history biases in human perceptual decisions

Abrahamyan

Silva

Dakin

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

178

233

View full text Add to dashboard Cite

When making choices under conditions of perceptual uncertainty, past experience can play a vital role. However, it can also lead to biases that worsen decisions. Consistent with previous observations, we found that human choices are influenced by the success or failure of past choices even in a standard two-alternative detection task, where choice history is irrelevant. The typical bias was one that made the subject switch choices after a failure. These choice history biases led to poorer performance and were similar for observers in different countries. They were well captured by a simple logistic regression model that had been previously applied to describe psychophysical performance in mice. Such irrational biases seem at odds with the principles of reinforcement learning, which would predict exquisite adaptability to choice history. We therefore asked whether subjects could adapt their irrational biases following changes in trial order statistics. Adaptability was strong in the direction that confirmed a subject’s default biases, but weaker in the opposite direction, so that existing biases could not be eradicated. We conclude that humans can adapt choice history biases, but cannot easily overcome existing biases even if irrational in the current context: adaptation is more sensitive to confirmatory than contradictory statistics.

show abstract

“…2). This approach to fitting psychometric curves is more general as it helps to estimate left/right choice biases (64). The psychometric function had the following form:…”

Section: Methodsmentioning

confidence: 99%

Adaptable history biases in human perceptual decisions

Abrahamyan

Silva

Dakin

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

178

233

View full text Add to dashboard Cite

show abstract

“…Moreover, the slope of intelligibility functions for the Dutch material might be biased 6 since in this case the intelligibility function was derived from adaptive data (Kaernbach, 2001). And finally, during the measurement using the Dutch test, subjects had no possibility of correcting their mistakes if they accidentally pressed an inappropriate key, and consequently the upper asymptote of the intelligibility function did not reach 100 %, which might have decreased the intelligibility function slope (Klein, 2001). Further factors affecting the inconsistency between parameters of the intelligibility functions across languages might result from differences in their linguistic structure and differences across speakers.…”

Section: Comparison Of Intelligibility Function For Digit Triplets Acmentioning

confidence: 99%

“…Furthermore, the so-called 'lapse rate' (i.e. the probability of mistakes made for intelligible speech signals) is reduced and, consequently, bias in intelligibility data is minimized (Klein, 2001). The subject's response was scored 1 if the entire triplet was repeated correctly, otherwise the response was scored 0 (this method is called triplet scoring 4 , which produces steep intelligibility functions, resulting in more accurate measurement).…”

mentioning

confidence: 99%

Development and evaluation of Polish digit triplet test for auditory screening

Ozimek

Kutzner

et al. 2009

Speech Communication

View full text Add to dashboard Cite

“…To substantiate these descriptive findings, the best-fitting psychometric function was calculated using a Weibull cumulative function (Klein, 2001). This analysis allows for estimation of the horizontal (frequency) shift of the psychometric function.…”

Section: Identification Performancementioning

confidence: 99%

Scene Identification and Emotional Response: Which Spatial Frequencies Are Critical?

Cesarei

Codispoti²

2011

J. Neurosci.

View full text Add to dashboard Cite

Emotional responses are regulated by basic motivational systems (appetitive and defensive), which allow for adaptive behavior when opportunities and threats are detected. It has been suggested that specific ranges of spatial frequencies of the visual input may contain information that is diagnostic for discriminating emotionally relevant from less relevant contents, and that specialized neural modules may analyze these spatial frequencies to allow efficient detection and response to life-threatening or life-sustaining stimuli. However, there is no evidence supporting this possibility regarding natural scenes, which are highly varied in terms of pictorial composition. The present study examines how low and high spatial frequency filtering affects the understanding of natural scene contents and modulates the amplitude of the late positive potential (LPP), a well-known component of the event-related potentials that reflects motivational significance. The content of an initially degraded (low-or high-passed) picture was progressively revealed in a sequence of steps by adding high or low spatial frequencies. At each step, human participants reported whether they identified the gist of the image. The results showed that the affective modulation of the LPP varied with picture identification similarly for low-passed and high-passed pictures. The engagement of corticolimbic appetitive and defensive systems, reflected in the LPP affective modulation, varied with picture identification, and did not critically or preferentially depend on either low or high spatial frequencies.

show abstract

Measuring, estimating, and understanding the psychometric function: A commentary

Cited by 409 publications

References 36 publications

Adaptable history biases in human perceptual decisions

Adaptable history biases in human perceptual decisions

Development and evaluation of Polish digit triplet test for auditory screening

Scene Identification and Emotional Response: Which Spatial Frequencies Are Critical?

Contact Info

Product

Resources

About