df_hindi: Data from the Potsdam-Allahabad Hindi Corpus, an eyetracking...

In vasishth/lingpsych: Data and Functions used in the Book "Linear Mixed Models in Linguistics and Psychology: A Comprehensive Introduction"

Description

The dataset is from an eyetracking study by \insertCiteHusainVasishthNarayanan2015;textuallingpsych, and contains various reading measures for a newspaper corpus in Hindi. The data are from a larger data-set and contain 10 subjects who read 83 items. The reading measures shown are for each word in each sentence.

Usage

df_hindi

Format

A data frame with 27,066 rows and 33 variables:

subj

The subject id, ranging from 1 to 10.

expt

The experiment id.

item

The item id, ranging from 1 to 83.

lang

The language being investigated.

session

There were two sessions, one preceded by an experiment on Urdu, and one followed by Urdu.

trial

Trial id.

roi

Region of interest in the sentence.

FFD

(First-Fixation Duration) Duration of the first fixation on a position if (and only if) the fixation was progressive. Zero otherwise.

FFP

(First Fixation Progressive) 0 if material downstream was viewed before the first fixation on this position, 1 otherwise.

SFD

(Single Fixation Duration) Duration of the fixation on a position if it was the *only* fixation on this region, i.e. if no subsequent fixation on this position followed. Zero if there were several fixations on this region.

FPRT

(First Pass Reading Time, Gaze Duration) Sum of all first-pass fixation durations on a region before *any* other region is fixated. (What exactly constitutes a first pass is determined by the parameter 'regressiveFirstPass'.)

RBRT

(Right Bounded Reading Time) Sum of all first-pass fixation durations on a position before another position to the *right* is fixated. (What exactly constitutes a first pass is determined by the parameter 'regressiveFirstPass'.)

TFT

(Total Fixation Time) Sum of all fixation durations on a region.

RPD

(Regression Path Duration, Go-Past Duration) Sum of all first-pass fixation durations on a position n and all preceding positions in the time period between the first fixation on n and the first fixation on anything to the right of n.

CRPD

(Cumulative Regression Path Duration) The CRPD of position n is the total amount of time a participant spent reading the sentence until reaching region n+1. It is the sum of the RPDs of all preceding regions and the RPD of the current region.

RRT

(Re-reading Time) Sum of all second-pass fixation durations. (RRT = TFT - FPRT)

RRTP

(ReReading Time Progressive) Sum of all second-pass fixation durations on a position that took place *before* a fixation on a region further to the right. (RRTP = RBRT - FPRT)

RRTR

(ReReading Time Regressive) Sum of all second-pass fixation durations on a position that occured *after* a fixation on a region further to the right. (RRTR = TFT - RBRT)

RBRC

(Right-Bounded Regression Count) Number of regressions from this position given *before* any region further to the right has been fixated.

TRC

(Total Regression Count) Total number of regressions from this position.

LPRT

(Last-pass reading time).

syll_len

Syllable length.

word_lex

The word read.

word_complex

Word complexity (continuous measure).

word_freq

Word frequency.

type_freq

Type frequency.

word_bifreq

Word bigram frequency.

type_bifreq

Type bigram frequency.

word_len

Word length.

PB

??.

IC

Integration cost.

SC

Storage cost.

References

\insertAllCited

vasishth/lingpsych documentation built on Dec. 23, 2021, 2:11 p.m.