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The contribution of sensory information on the unintentional synchronization of...

The role of acoustic cues in time-to-passage judgments : judging time-to-passag...

8º Encontro Nacional da Associação Portuguesa de Psicologia Experimental : posters : títulos e resumos ; Estimating the arrival of a moving sound is part of everyday tasks, such as when crossing a street with cars coming from both sides. Previous studies showed that approaching sounds were evaluated as closer than the real final distance, in comparison with corresponding receding sounds (Neuhoff; 2001). Thi...

Time-to-passage estimation on periphery : better for biological motion?

In  previous  studies,  complex  motion  stimuli  were  judged  as  passing  sooner  than  rigid stimuli  but  reflected  more  uncertainty  in  the  judgments  as  revealed  by  precision  loss  and  longer reaction  times.  It  is  known  that  biological  motion  can  be  perceived  in  the  periphery .  In  the everyday  life  people  are  required  to  interact  with  or  to  estimate  motion  variables  o...

The role of acoustic cues in time-­to-­passage judgments : judging time-­to-­pa...

5th Iberian Conference on Perception (CIP) ; Estimating  the  arrival  of  a  moving  sound  is  part  of  people’s  everyday  tasks,  such  as when  crossing  a  street  with  cars  coming  from  both  sides  (eg.  Winer,  1980  in  Rosenblum, Wuestefeld,  Saldaña,  1993).  Given  equal  distances,  the  beginning  and  ending  positions  of  a moving  sound’s  source  are  perceived  as  closer  when  movin...

Depth cues and perceived audiovisual synchrony of biological motion

Due to their different propagation times, visual and auditory signals from external events arrive at the human sensory receptors with a disparate delay. This delay consistently varies with distance, but, despite such variability, most events are perceived as synchronic. There is, however, contradictory data and claims regarding the existence of compensatory mechanisms for distance in simultaneity judgments. Pr...

The time to passage of biological and complex motion

A significant part of human interactions occur with other human beings and not only with inanimate objects. It is important in everyday tasks to estimate the time it takes other people to reach (time to contact) or pass us (time to passage). Surprisingly, little is known about judging time to contact or time to passage of biological or other complex motions. In two experiments, rigid and non-rigid (biological, ...

From human motion capture to biological motion visualization : a new methodology

Uncertainty in estimating time-to-passage revealed by reaction times

Percepção de velocidade do movimento biológico : mais resistente ao fenômeno de...

O sistema visual humano é frequentemente referido como altamente preparado para extrair informação relevante de padrões de movimento biológico. Nesse sentido, este estudo analisa o efeito de contraste na percepção de velocidade. Os participantes realizaram o julgamento de velocidade numa situação na qual dois point-light walkers simultâneos foram apresentados com diferentes contrastes relativamente ao fundo e c...

Combination of image expansion and known size explains time-to-passage of biolo...

It is important in everyday tasks to estimate the time it takes an object to reach an observer, time-to-contact (TTC), or when it will pass us, time-to-passage (TTP). However, we do not solely interact with inanimate objects but also with people. It is known that the visual system does not integrate biological motion (BM) linearly over space and time with constant efficiency (Neri Morrone and Burr, 1998 Nature ...