Implicit and explicit contributions to object recognition: evidence from rapid perceptual learning.
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Implicit and explicit contributions to object recognition: evidence from rapid perceptual learning. / Martens, Ulla; Wahl, Patricia; Hassler, Uwe; Friese, Uwe; Gruber, Thomas.
In: PLOS ONE, Vol. 7, No. 10, 10, 2012, p. 47009.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Implicit and explicit contributions to object recognition: evidence from rapid perceptual learning.
AU - Martens, Ulla
AU - Wahl, Patricia
AU - Hassler, Uwe
AU - Friese, Uwe
AU - Gruber, Thomas
PY - 2012
Y1 - 2012
N2 - The present study investigated implicit and explicit recognition processes of rapidly perceptually learned objects by means of steady-state visual evoked potentials (SSVEP). Participants were initially exposed to object pictures within an incidental learning task (living/non-living categorization). Subsequently, degraded versions of some of these learned pictures were presented together with degraded versions of unlearned pictures and participants had to judge, whether they recognized an object or not. During this test phase, stimuli were presented at 15 Hz eliciting an SSVEP at the same frequency. Source localizations of SSVEP effects revealed for implicit and explicit processes overlapping activations in orbito-frontal and temporal regions. Correlates of explicit object recognition were additionally found in the superior parietal lobe. These findings are discussed to reflect facilitation of object-specific processing areas within the temporal lobe by an orbito-frontal top-down signal as proposed by bi-directional accounts of object recognition.
AB - The present study investigated implicit and explicit recognition processes of rapidly perceptually learned objects by means of steady-state visual evoked potentials (SSVEP). Participants were initially exposed to object pictures within an incidental learning task (living/non-living categorization). Subsequently, degraded versions of some of these learned pictures were presented together with degraded versions of unlearned pictures and participants had to judge, whether they recognized an object or not. During this test phase, stimuli were presented at 15 Hz eliciting an SSVEP at the same frequency. Source localizations of SSVEP effects revealed for implicit and explicit processes overlapping activations in orbito-frontal and temporal regions. Correlates of explicit object recognition were additionally found in the superior parietal lobe. These findings are discussed to reflect facilitation of object-specific processing areas within the temporal lobe by an orbito-frontal top-down signal as proposed by bi-directional accounts of object recognition.
KW - Adult
KW - Humans
KW - Male
KW - Female
KW - Signal Processing, Computer-Assisted
KW - Time Factors
KW - Electroencephalography
KW - Visual Perception/physiology
KW - Behavior/physiology
KW - Recognition (Psychology)/physiology
KW - Evoked Potentials, Visual/physiology
KW - Neurons/cytology
KW - Visual Cortex/cytology/physiology
KW - Adult
KW - Humans
KW - Male
KW - Female
KW - Signal Processing, Computer-Assisted
KW - Time Factors
KW - Electroencephalography
KW - Visual Perception/physiology
KW - Behavior/physiology
KW - Recognition (Psychology)/physiology
KW - Evoked Potentials, Visual/physiology
KW - Neurons/cytology
KW - Visual Cortex/cytology/physiology
U2 - 10.1371/journal.pone.0047009
DO - 10.1371/journal.pone.0047009
M3 - SCORING: Journal article
VL - 7
SP - 47009
JO - PLOS ONE
JF - PLOS ONE
SN - 1932-6203
IS - 10
M1 - 10
ER -
