TY  - GEN
A1  - Miklashevsky, Alex A.
A1  - Lindemann, Oliver
A1  - Fischer, Martin H.
T1  - Think of the future in the right way
BT  - Processing time activates the motor system
T2  - Cognitive processing : international quarterly of cognitive science
Y1  - 2018
SN  - 1612-4782
SN  - 1612-4790
VL  - 19
SP  - S46
EP  - S46
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Krause, Florian
A1  - Meyer, Marlene
A1  - Bekkering, Harold
A1  - Hunnius, Sabine
A1  - Lindemann, Oliver
T1  - Interaction between perceptual and motor magnitudes in early childhood
JF  - Cognitive development
N2  - Recent research has suggested that all types of size-related information are linked by a generalised system that codes for domain-independent magnitudes. This generalized system is further suggested to be acquired through everyday sensorimotor experiences with contingencies of size-related information in the real world. The aim of the present study was to investigate the existence of this common representation and its impact on the coupling of perception and action in early childhood. According to an embodied view on magnitude representation, an association between perceived magnitude information and size-related motor features, such as applied motor force, should emerge as soon as motor control is sufficiently developed. This hypothesis was tested in 2.5- to 3-year-old toddlers by engaging them in a computer game-like experimental task in which they were required to move objects placed on a platform upwards by pressing a button. The amount of objects was varied systematically (small amount: 3 vs. large amount: 15) and the force children applied on the button while moving the objects was recorded. Importantly, the amount of applied force was not relevant for successfully playing the game. The analysis of the peak force revealed that motor responses were executed more forcefully when children were presented with a large amount of objects compared to a small amount, irrespective of the toddler’s motor abilities which were evaluated by two additional measures (force control and general fine motor skills). This general effect of perceived magnitude information on the task-irrelevant applied motor force confirms our notion that a link between perceptual and motor magnitudes exists already in early childhood and provides new evidence for a sensorimotor grounding of magnitude concepts.
KW  - Perception-action coupling
KW  - Generalised magnitude system
KW  - Embodied cognition
KW  - motor development
Y1  - 2018
U6  - https://doi.org/10.1016/j.cogdev.2018.11.001
SN  - 0885-2014
SN  - 1879-226X
VL  - 49
SP  - 11
EP  - 19
PB  - Elsevier Science
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Sixtus, Elena
A1  - Lindemann, Oliver
A1  - Fischer, Martin H.
T1  - Stimulating numbers
BT  - signatures of finger counting in numerosity processing
JF  - Psychological research : an international journal of perception, attention, memory, and action
N2  - Finger counting is one of the first steps in the development of mature number concepts. With a one-to-one correspondence of fingers to numbers in Western finger counting, fingers hold two numerical meanings: one is based on the number of fingers raised and the second is based on their ordinal position within the habitual finger counting sequence. This study investigated how these two numerical meanings of fingers are intertwined with numerical cognition in adults. Participants received tactile stimulation on their fingertips of one hand and named either the number of fingers stimulated (2, 3, or 4 fingers; Experiment 1) or the number of stimulations on one fingertip (2, 3, or 4 stimulations; Experiment 2). Responses were faster and more accurate when the set of stimulated fingers corresponded to finger counting habits (Experiment 1) and when the number of stimulations matched the ordinal position of the stimulated finger (Experiment 2). These results show that tactile numerosity perception is affected by individual finger counting habits and that those habits give numerical meaning to single fingers.
Y1  - 2018
U6  - https://doi.org/10.1007/s00426-018-0982-y
SN  - 0340-0727
SN  - 1430-2772
VL  - 84
IS  - 1
SP  - 152
EP  - 167
PB  - Springer
CY  - Heidelberg
ER  -