The concept of time has long been the subject of complex philosophical reflections and scientific research, which have interpreted it differently based on the starting question, context, and level of analysis of the system under investigation. In the present review, we first explore how time has been studied among different scientific fields such as physics, neuroscience, and bioecological sciences. We emphasize the fundamental role of an organism's ability to perceive the passage of time and dynamically adapt to its environment for (...) survival. Growth, reproduction, and communication processes are subject to spatiotemporal variability, and the sense of time allows organisms to structure their interactions, track past, and anticipate future events. Specifically, building on a relational and multilevel approach, this paper proposes an analysis of various aspects of the temporal dimension of plants—ranging from their growth and adaptation rates to behavioral strategies and modes of communication—culminating in a focused examination of research based on the kinematical analysis of plant movement. By adopting a comparative and critical approach, we raise several questions about the temporality of processes from different perspectives. Further insights into the timing of physiological and communication processes in plants will help to recognize the central role of temporality in life and to discover mechanisms, processes, and behavioral strategies that may be common (or similar) across species or unique (species-specific) for some organisms, both with and without nervous systems. (shrink)

Female crested gibbons (genus Nomascus) perform conspicuous sequences of twitching movements involving the rump and extremities. However, these dances have attracted little scientific attention and their structure and meaning remain largely obscure. Here we analyse close-range video recordings of captive crested gibbons, extracting descriptions of dance in four species (N. annamensis, N. gabriellae, N. leucogenys and N. siki). In addition, we report results from a survey amongst relevant professionals clarifying behavioural contexts of dance in captive and wild crested gibbons. Our (...) results demonstrate that dances in Nomascus represent a common and intentional form of visual communication restricted to sexually mature females. Whilst primarily used as a proceptive signal to solicit copulation, dances occur in a wide range of contexts related to arousal and/or frustration in captivity. A linguistically informed view of this sequential behaviour demonstrates that movement within dances is organized in groups and follows an isochronous rhythm — patterns not described for visual displays in other non-human primates. We argue that applying the concept of dance to gibbons allows us to expand our understanding of communication in non-human primates and to develop hypotheses on the rules and regularities characterising it. We propose that crested gibbon dances likely evolved from less elaborate rhythmic proceptive signals, similar to those found in siamangs. Although dance displays in humans and crested gibbons share a number of key characteristics, they cannot be assumed to be homologous. Nevertheless, gibbon dances represent a striking model behaviour to investigate the use of complex gestural signals in hominoid primates. (shrink)

Już w 1775 r. Joshua Steele sformułował tezę o występowaniu równych pod względem czasowym interwałów – nie tylko w muzyce, ale również w mowie ludzkiej. Tak zwana teoria izochronizmu stała się w późniejszym okresie wyjściowym kryterium dla typologicznego podziału języków świata pod względem zjawisk rytmicznych. Na podstawie badań akustyczno-audytywnych niemożliwe było jednak znalezienie empirycznych dowodów co do równości odstępów pomiędzy sylabami akcentowanymi w językach grupy stress-timed ani co do równego czasu trwania poszczególnych sylab w językach typu syllable-timed. Tak więc pierwotny (...) typologiczny podział języków według dwóch typów rytmicznych okazał się nieuzasadniony. Celem niniejszego artykułu jest ukazanie innych kryteriów typologicznego opisu języków pod względem rytmu, który ma duże znaczenie w dziedzinie językoznawstwa kontrastywnego oraz nauczania języków obcych. (shrink)