Brain Functional Asymmetry of Chimpanzees (Pan troglodytes): the Example of Auditory Laterality

Szymańska, Justyna; Trojan, Maciej; Jakucińska, Anna; Wejchert, Katarzyna; Kapusta, M.; Sikorska, Julia

doi:10.1515/ppb-2017-0011

Cited by 3 publications

(3 citation statements)

References 16 publications

(17 reference statements)

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“…Auditory laterality in mammals has been widely reported [ 9 , 10 , 11 , 12 ]. Primates display right and left hemisphere asymmetry in response to communication sounds [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Laterality in Responses to Acoustic Stimuli in Giant Pandas

Tang

et al. 2021

Animals

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Cerebral lateralization is a common feature present in many vertebrates and is often observed in response to various sensory stimuli. Numerous studies have proposed that some vertebrate species have a right hemisphere or left hemisphere dominance in response to specific types of acoustic stimuli. We investigated lateralization of eight giant pandas (Ailuropoda melanoleuca) by using a head turning paradigm and twenty-eight acoustic stimuli with different emotional valences which included twenty-four conspecific and four non-conspecific acoustic stimuli (white noise, thunder, and vocalization of a predator). There was no significant difference in auditory laterality in responses to conspecific or non-conspecific sounds. However, the left cerebral hemisphere processed the positive stimuli, whereas neither of the two hemispheres exhibited a preference for processing the negative stimuli. Furthermore, the right hemisphere was faster than the left hemisphere in processing emotional stimuli and conspecific stimuli. These findings demonstrate that giant pandas exhibit lateralization in response to different acoustic stimuli, which provides evidence of hemispheric asymmetry in this species.

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“…Auditory laterality in mammals has been widely reported [ 9 , 10 , 11 , 12 ]. Primates display right and left hemisphere asymmetry in response to communication sounds [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Laterality in Responses to Acoustic Stimuli in Giant Pandas

Tang

et al. 2021

Animals

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“…Lateralized behavior is considered an observable phenotype of cerebral functional asymmetry that may have its origins in hemispheric specialization (Bonati & Csermely, 2013; Forrester et al, 2018; Szymańska et al, 2017; Wallez & Vauclair, 2011). Critical questions in understanding the evolution and function of behavioral asymmetries focus on the timing and development of lateralized behavior in different species (Holowka & Petitto, 2002; Iturria‐Medina et al, 2011; Regaiolli et al, 2018; Rogers et al, 2013; Tommasi, 2009).…”

Section: Introductionmentioning

confidence: 99%

Neonatal nipple preference and maternal cradling laterality in wild Taihangshan macaques (Macaca mulatta tcheliensis)

Guo

Garber

Tian

et al. 2020

American J Primatol

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Lateralized behavior is considered an observable phenotype of cerebral functional asymmetry and has been documented in many mammalian species. In the present study, we examined evidence of lateralization in neonatal nipple contact, maternal cradling, and the relationship between these two behaviors during the first 12 weeks of life in wild Taihangshan macaques (Macaca mulatta tcheliensis). The results showed that across our sample of nine mother-infant dyads: (1) Seven of nine neonates

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“…Most of these studies have investigated whether animals, as a parallel to language processing, had a dominant hemisphere for the processing of the species-specific vocalisations. Indeed, a left dominance for species-specific vocalisations has been found in a series of species such as seals [10], mice [11], raptors [12], cats [13], rhesus macaques [14,15], and chimpanzees [16] using ear orientation in response to playbacks or lesional approaches such as Heffner and Heffner [17,18]. However, results in songbirds and some primate species are more mitigated: lesions, electrophysiological and/or behavioural tests reveal a left dominance in Bengalese finches [19], rhesus macaques [20] but a right dominance in zebra finches [21], European starlings [22,23], vervet monkeys [24] and Japanese macaques [25] in response to species-specific vocal signals.…”

Section: Introductionmentioning

confidence: 99%

A Crucial Role of Attention in Lateralisation of Sound Processing?

et al. 2019

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Studies on auditory laterality have revealed asymmetries for processing, particularly species-specific signals, in vertebrates and that each hemisphere may process different features according to their functional “value”. Processing of novel, intense emotion-inducing or finer individual features may require attention and we hypothesised that the “functional pertinence” of the stimuli may be modulating attentional processes and hence lateralisation of sound processing. Behavioural measures in “(food) distracted” captive Campbell’s monkeys and electrophysiological recordings in anesthetised (versus awake) European starlings were performed during the broadcast of auditory stimuli with different functional “saliences” (e.g., familiar/novel). In Campbell’s monkeys, only novel sounds elicited lateralised responses, with a right hemisphere preference. Unfamiliar sounds elicited more head movements, reflecting enhanced attention, whereas familiar (usual in the home environment) sounds elicited few responses, and thus might not be arousing enough to stimulate attention. In starlings, in field L, when awake, individual identity was processed more in the right hemisphere, whereas, when anaesthetised, the left hemisphere was more involved in processing potentially socially meaningless sounds. These results suggest that the attention-getting property of stimuli may be an adapted concept for explaining hemispheric auditory specialisation. An attention-based model may reconcile the different existing hypotheses of a Right Hemisphere-arousal/intensity or individual based lateralisation.

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Brain Functional Asymmetry of Chimpanzees (Pan troglodytes): the Example of Auditory Laterality

Abstract: The aim of this study was to verify whether chimpanzees (Pan

Cited by 3 publications

References 16 publications

Laterality in Responses to Acoustic Stimuli in Giant Pandas

Laterality in Responses to Acoustic Stimuli in Giant Pandas

Neonatal nipple preference and maternal cradling laterality in wild Taihangshan macaques (Macaca mulatta tcheliensis)

A Crucial Role of Attention in Lateralisation of Sound Processing?

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