eprintid: 21908
rev_number: 17
eprint_status: archive
userid: 2747
dir: disk0/00/02/19/08
datestamp: 2016-10-14 12:00:23
lastmod: 2016-10-17 09:57:38
status_changed: 2016-10-14 12:00:23
type: doctoralThesis
metadata_visibility: show
creators_name: Schubert, Anna-Lena
title: The relationship between mental speed and mental abilities
subjects: 150
divisions: 100200
adv_faculty: af-10
keywords: Latent state-trait theory, mental speed, speed of information-processing, mental chronometry, ERP, model fit, individual differences, individuelle Unterschiede
cterms_swd: Intelligenz
cterms_swd: Reaktionszeit
cterms_swd: Elektrophysiologie
cterms_swd: Diffusionsmodell
cterms_swd: intelligence
abstract: Mental speed is one often proposed candidate property of information processing affecting different cognitive abilities that may underlie individual differences in general intelligence. The aim of the present work was to expand the measurement of mental speed in individual differences research beyond the measurement of response times using state-of-the-art psychological and physiological methods. Based on two multivariate studies, this thesis demonstrates the benefits of a process-oriented approach to measuring mental speed. Moreover, the results show that on a behavioral level, mental speed can be considered as a one-dimensional trait, whereas one has to distinguish between the speed of early visual processing and higher-order processing on a physiological level. Finally, structural equation modeling revealed that on a behavioral level, general intelligence was associated with generally faster response times, whereas on a neurophysiological level, general intelligence was differentially related to earlier and later ERP latencies and was most strongly associated with ERP latencies reflecting the speed of higher-order processing. Taken together, ERP latencies explained about 85 percent 
of the variance in general intelligence, whereas response times explained only 19 percent. This result suggests that ERP latencies may provide a purer measurement of mental speed and that response times may be contaminated by 
additional processes such as motor planning and execution that are largely unrelated to general intelligence.
date: 2016
id_scheme: DOI
id_number: 10.11588/heidok.00021908
ppn_swb: 1659106850
own_urn: urn:nbn:de:bsz:16-heidok-219085
date_accepted: 2016-07-11
advisor: HASH(0x564e1c488050)
language: eng
bibsort: SCHUBERTANTHERELATIO2016
full_text_status: public
citation:   Schubert, Anna-Lena  (2016) The relationship between mental speed and mental abilities.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/21908/1/Schubert_The%20relationship%20between%20mental%20speed%20and%20mental%20abilities.pdf