Population variation in lateralized eye use in the poeciliid
            <i>Brachyraphis episcopi</i>

Brown, Culum; Gardner, Carolyn Caffrey; Braithwaite, Valerie

doi:10.1098/rsbl.2004.0222

Cited by 104 publications

(118 citation statements)

References 22 publications

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“…A study of 16 species of fish found that all shoaling species showed population-level lateralization of predator evasion behaviour, whereas non-shoaling species tended to have individual but not population lateralization (Bisazza et al 2000). A field study reported in the poeciliid fish Brachyraphis episcopi that individuals from high-predation populations were more lateralized than their lowpredation counterparts (Brown et al 2004). The authors suggested that in a population with a high predation pressure, selection has favoured lateralized fish because they are better able to cope with two simultaneous tasks, such as foraging and predator vigilance.…”

Section: Discussionmentioning

confidence: 99%

The costs of hemispheric specialization in a fish

et al. 2009

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Laboratory and field studies have documented better cognitive performance associated with marked hemispheric specialization in organisms as diverse as chimpanzees, domestic chicks and topminnows. While providing an evolutionary explanation for the emergence of cerebral lateralization, this evidence represents a paradox because a large proportion of non-lateralized (NL) individuals is commonly observed in animal populations. Hemispheric specialization often determines large left -right differences in perceiving and responding to stimuli. Using topminnows selected for a high or low degree of lateralization, we tested the hypothesis that individuals with greater functional asymmetry pay a higher performance cost in situations requiring matching information from the two eyes. When trained to use the middle door in a row of a nine, NL fish correctly chose the central door in most cases, while lateralized fish showed systematic leftward or rightward biases. When choosing between two shoals, each seen with a different eye, NL fish chose the high-quality shoal significantly more often than the lateralized fish, whose performance was affected by eye preference for analysing social stimuli. These findings suggest the existence of a trade-off between computational advantages of hemispheric specialization and the ecological cost of making suboptimal decisions whenever relevant information is located on both sides of the body.

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Section: Discussionmentioning

confidence: 99%

The costs of hemispheric specialization in a fish

et al. 2009

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“…Exposure of salamander eggs to predator odour induces more efficient anti-predatory strategies in post-hatching larvae (reduced activity and preference for vegetated habitats [38]). In fish, lateralized behaviour patterns fluctuate between populations of the same species exposed to differing levels of predation pressure [10]. In poeciliid fish, females from highpredation areas display stronger side-turning biases, when faced with a novel object than those from low-predation areas [11].…”

Section: Discussionmentioning

confidence: 99%

Embryonic exposure to predator odour modulates visual lateralization in cuttlefish

Jozet‐Alves

Hébert

2013

Proc. R. Soc. B.

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Predation pressure acts on the behaviour and morphology of prey species. In fish, the degree of lateralization varies between high-and low-predation populations. While lateralization appears to be widespread in invertebrates, we do not know whether heredity and early experience interact during development as in vertebrates. Here we show, for the first time, that an exposure to predator odour prior to hatching modulates visual lateralization in newly hatched cuttlefish. Only cuttlefish that have been exposed to predator odour display a left-turning bias when tested with blank seawater in a T-shaped apparatus. Exposure to predator odour all the incubation long could appear as an acute predictor of a high-predation surrounding environment. In addition, cuttlefish of all groups display a left-turning preference when tested with predator odour in the apparatus. This suggests the ability of cuttlefish to innately recognize predator odour. To our knowledge, this is the first clear demonstration that lateralization is vulnerable to ecological challenges encountered during embryonic life, and that environmental stimulation of the embryo through the olfactory system could influence the development of subsequent visual lateralization.

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“…Elevated opercula beat rate is a measure commonly used to infer a physiologically stressed state in fish (e.g. Lucas et al 1993, Brown et al 2004. Changes in opercula beat rate are a sensitive response to disturbance, but it should be recognised that they do not always reflect the severity of the stimulus (Baretto & Volpato 2004).…”

Section: Nociception and The Effects Of Noxious Stimuli In Teleost Fishmentioning

confidence: 99%

Pain perception, aversion and fear in fish

Braithwaite¹,

Boulcott²

2007

Dis. Aquat. Org.

120

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There is now compelling evidence that teleost fish possess similar nociceptive processing systems to those found in terrestrial vertebrates. Noxious stimulation of these nociceptors -specialised pain receptors -in the skin around the snout of fish generates neural activity that can be electrophysiologically recorded, and induces a number of behavioural and physiological changes. To determine whether changes in behaviour are more than simple responses to the noxious stimulation it is necessary to demonstrate that higher order cognitive processes such as mental state or 'affective state' are involved. However, quantifying the 'motivational affected state' of an animal -a concept encompassing not just pain but also fear, hunger, thirst and pleasure -is difficult owing to its subjectivity. Recent empirical work is beginning to test these concepts in fish, and we review a number of these studies and suggest how these general methodologies could be used to further our understanding of fish cognition and the capacity for fish to experience mental states such as fear or suffering.

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Population variation in lateralized eye use in the poeciliid Brachyraphis episcopi

Cited by 104 publications

References 22 publications

The costs of hemispheric specialization in a fish

The costs of hemispheric specialization in a fish

Embryonic exposure to predator odour modulates visual lateralization in cuttlefish

Pain perception, aversion and fear in fish

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