scholarly journals Simultaneous recall procedure reveals integrated object representations in VWM

2019 ◽  
Vol 19 (10) ◽  
pp. 202
Author(s):  
Hirotaka Sone ◽  
Aedan Li ◽  
Keisuke Fukuda
Keyword(s):  
Object Representations ◽  
Recall Procedure

scholarly journals The steady-state visual evoked potential (SSVEP) reflects the activation of cortical object representations: evidence from semantic stimulus repetition

2020 ◽  
Author(s):  
Elise L. Radtke ◽  
Ulla Martens ◽  
Thomas Gruber
Keyword(s):  
Steady State ◽  
Object Representation ◽  
Sensory Information ◽  
Familiar Object ◽  
Object Representations ◽  
Stimulus Repetition ◽  
Experimental Conditions ◽  
Repetition Suppression ◽  
Task Irrelevant ◽  
Visual Evoked

AbstractWe applied high-density EEG to examine steady-state visual evoked potentials (SSVEPs) during a perceptual/semantic stimulus repetition design. SSVEPs are evoked oscillatory cortical responses at the same frequency as visual stimuli flickered at this frequency. In repetition designs, stimuli are presented twice with the repetition being task irrelevant. The cortical processing of the second stimulus is commonly characterized by decreased neuronal activity (repetition suppression). The behavioral consequences of stimulus repetition were examined in a companion reaction time pre-study using the same experimental design as the EEG study. During the first presentation of a stimulus, we confronted participants with drawings of familiar object images or object words, respectively. The second stimulus was either a repetition of the same object image (perceptual repetition; PR) or an image depicting the word presented during the first presentation (semantic repetition; SR)—all flickered at 15 Hz to elicit SSVEPs. The behavioral study revealed priming effects in both experimental conditions (PR and SR). In the EEG, PR was associated with repetition suppression of SSVEP amplitudes at left occipital and repetition enhancement at left temporal electrodes. In contrast, SR was associated with SSVEP suppression at left occipital and central electrodes originating in bilateral postcentral and occipital gyri, right middle frontal and right temporal gyrus. The conclusion of the presented study is twofold. First, SSVEP amplitudes do not only index perceptual aspects of incoming sensory information but also semantic aspects of cortical object representation. Second, our electrophysiological findings can be interpreted as neuronal underpinnings of perceptual and semantic priming.

scholarly journals Using fMR-adaptation to track complex object representations in perirhinal cortex

2013 ◽  
Vol 4 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Rachael D. Rubin ◽  
Samantha A. Chesney ◽  
Neal J. Cohen ◽  
Brian D. Gonsalves
Keyword(s):  
Perirhinal Cortex ◽  
Complex Object ◽  
Object Representations

Sex differences in the object representations in the dreams of adolescents

Sex Roles ◽  
1997 ◽  
Vol 36 (7-8) ◽  
pp. 503-516 ◽  
Author(s):  
Robert K. Winegar ◽  
Ross Levin
Keyword(s):  
Sex Differences ◽  
Object Representations

An Ego-Psychological Approach to the Rorschach

1995 ◽  
Vol 77 (3) ◽  
pp. 911-930
Author(s):  
George Frank
Keyword(s):  
Object Relations ◽  
Psychological Assessment ◽  
Comprehensive Assessment ◽  
Point Of View ◽  
Object Representations ◽  
Psychological Approach ◽  
Contemporary View ◽  
Present Purpose ◽  
Ego Psychology

This presentation is an extension and amplification of the ego-psychological assessment of Rorschach data initiated in 1946 by Rapaport, Gill, and Schafer whose focus was on the quality of the perception of reality and the assessment of defence. A more contemporary view of ego psychology not only includes an expanded view of defence but also of the nature of self- and object representations and the nature of object relations. An assessment of the synthesizing function of the ego was also discussed. The present purpose was to present a comprehensive assessment of Rorschach data from the point of view of contemporary ego psychology.

A multiscale dynamic routing circuit for forming size- and position-invariant object representations

1995 ◽  
Vol 2 (1) ◽  
pp. 45-62 ◽  
Author(s):  
Bruno A. Olshausen ◽  
Charles H. Anderson ◽  
David C. Van Essen
Keyword(s):  
Dynamic Routing ◽  
Object Representations
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