Lateralization of Cognitive Functions in Fish

Bisazza, Angelo; Brown, Culum

doi:10.1002/9781444342536.ch14

Cited by 54 publications

(57 citation statements)

References 125 publications

(190 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, in gregarious fish species, population-level bias in lateralization gives advantages for coordination during schooling (Bisazza and Brown, 2011). Staghorn sculpins are solitary and thus do not school.…”

Section: Short Communicationmentioning

confidence: 99%

“…In order to assess alterations of brain functioning in hypoxic conditions in fish, we focused on behavioural lateralization, an expression of brain functional asymmetry that reflects a differential specialization of the two hemispheres in processing information (Bisazza and Brown, 2011). In fish, even though the exact evolutionary processes involved are still not clear, the lateralization patterns observed in a population are thought to reflect selective pressures and to be important for the survival of individuals in many ecological settings such as feeding, predator escape, schooling, social and sexual interactions (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…In fish, even though the exact evolutionary processes involved are still not clear, the lateralization patterns observed in a population are thought to reflect selective pressures and to be important for the survival of individuals in many ecological settings such as feeding, predator escape, schooling, social and sexual interactions (e.g. Bisazza et al, 1997;Bisazza et al, 2000;Dadda et al, 2010;Bisazza and Brown, 2011). Although in some cases hemispheric specialization could represent an added cost in information processing (Bisazza and Brown, 2011), the vast of majority of evidence suggests that it confers several advantages.…”

Section: Introductionmentioning

confidence: 99%

“…Bisazza et al, 1997;Bisazza et al, 2000;Dadda et al, 2010;Bisazza and Brown, 2011). Although in some cases hemispheric specialization could represent an added cost in information processing (Bisazza and Brown, 2011), the vast of majority of evidence suggests that it confers several advantages. A lateralized brain allows a separation of task achievements: each hemisphere can develop higher specialization in processing specific information, resulting in greater cognitive performance.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, lateralization is also associated with an enhanced ability to escape from a predator: strongly lateralized fish have a faster reaction time, higher turning rates and longer distance travelled in escape responses (Dadda et al, 2010). In some cases, a bias for a specific directionality of lateralization is observed at the population level: a conspicuous proportion of individuals in a population is lateralized in the same direction (Bisazza and Brown, 2011). This bias appears to be relevant in social species to achieve greater coordination in movements (Bisazza et al, 2000), whereas in non-gregarious species, it could be involved in prey-predator interactions (Yasugi and Hori, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Severe hypoxia impairs lateralization in a marine teleost fish

Lucon‐Xiccato

Nati

Blasco

et al. 2014

Journal of Experimental Biology

View full text Add to dashboard Cite

In intertidal environments, the recurring hypoxic condition at low tide is one of the main factors affecting fish behaviour, causing broad effects on ecological interactions. We assessed the effects of hypoxia on lateralization (e.g. the tendency to turn left or right), a behaviour related to brain functional asymmetry, which is thought to play a key role in several life history aspects of fish. Using staghorn sculpin (Leptocottus armatus), a benthic fish that typically inhabits the intertidal zone, we found that hypoxia affects behavioural lateralization at the population level. On average, staghorn sculpins showed a distinct preference for right turns under normoxic conditions (>90% oxygen saturation), but an equal probability of turning right or left after exposure to hypoxia for 2 h (20% oxygen saturation). The specific turning preference observed in the staghorn sculpin control population is likely to have an adaptive value, for example in predator-prey interactions by enhancing attack success or survival from predatory attacks. Therefore the alteration of lateralization expressed by staghorn sculpins under hypoxic conditions may have far-reaching implications for species ecology and trophic interactions. Moreover, our work raises the need to study this effect in other species, in which a hypoxia-driven disruption of lateralization could affect a wider range of behaviours, such as social interactions and schooling.

show abstract

Section: Short Communicationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Severe hypoxia impairs lateralization in a marine teleost fish

Lucon‐Xiccato

Nati

Blasco

et al. 2014

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

Lateralization in feeding is food type specific and impacts feeding success in wild birds

Karenina

Giljov

2022

Ecology and Evolution

View full text Add to dashboard Cite

Current research suggests that hemispheric lateralization has significant fitness consequences. Foraging, as a basic survival function, is a perfect research model to test the fitness impact of lateralization. However, our understanding of lateralized feeding behavior is based predominantly on laboratory studies, while the evidence from wild animals in natural settings is limited. Here we studied visual lateralization in yellow‐footed green pigeons (Treron phoenicoptera) feeding in the wild. We aimed to test whether different types of food objects requiring different searching strategies elicit different eye/hemisphere biases. When feeding on relatively large, uniformly colored food objects (mahua flowers) which can be present or absent in the viewed patch, the majority of pigeons relied mostly on the left eye–right hemisphere. In contrast, when feeding on smaller and more abundant food objects, with color cues signaling its ripeness (sacred figs), right‐eye (left‐hemisphere) preference prevailed. Our results demonstrate that oppositely directed visual biases previously found in different experimental tasks occur in natural feeding situations in the form of lateralized viewing strategies specific for different types of food. The results suggest that pigeons rely on the hemisphere providing more advantages for the consumption of the particular type of food objects, implying the relevance of brain lateralization as a plastic adaptation to ecological demands. We assessed the success of food discrimination and consumption to examine the link between lateralization and cognitive performance. The use of the preferred eye resulted in better discrimination of food items. Discrimination accuracy and feeding efficiency were significantly higher in lateralized individuals. The results showed that visual lateralization impacted pigeons’ feeding success, implicating important fitness benefits associated with lateralization.

show abstract

Mental Capacities of Fishes

Sneddon

Brown

2020

Advances in Neuroethics

View full text Add to dashboard Cite

Lateralization of Cognitive Functions in Fish

Cited by 54 publications

References 125 publications

Severe hypoxia impairs lateralization in a marine teleost fish

Severe hypoxia impairs lateralization in a marine teleost fish

Lateralization in feeding is food type specific and impacts feeding success in wild birds

Mental Capacities of Fishes

Contact Info

Product

Resources

About