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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Finding The Engram., Sheena A Josselyn, Stefan Köhler, Paul W Frankland
Finding The Engram., Sheena A Josselyn, Stefan Köhler, Paul W Frankland
Brain and Mind Institute Researchers' Publications
Many attempts have been made to localize the physical trace of a memory, or engram, in the brain. However, until recently, engrams have remained largely elusive. In this Review, we develop four defining criteria that enable us to critically assess the recent progress that has been made towards finding the engram. Recent 'capture' studies use novel approaches to tag populations of neurons that are active during memory encoding, thereby allowing these engram-associated neurons to be manipulated at later times. We propose that findings from these capture studies represent considerable progress in allowing us to observe, erase and express the engram.
Contrasting Styles In Cognition And Behaviour In Bumblebees And Honeybees., David F Sherry, Caroline G Strang
Contrasting Styles In Cognition And Behaviour In Bumblebees And Honeybees., David F Sherry, Caroline G Strang
Psychology Publications
Bumblebees and honeybees have been the subjects of a great deal of recent research in animal cognition. Many of the major topics in cognition, including memory, attention, concept learning, numerosity, spatial cognition, timing, social learning, and metacognition have been examined in bumblebees, honeybees, or both. Although bumblebees and honeybees are very closely related, they also differ in important ways, including social organization, development, and foraging behaviour. We examine whether differences between bumblebees and honeybees in cognitive processes are related to differences in their natural history and behaviour. There are differences in some cognitive traits, such as serial reversal learning and …
Effects Of Caffeine On Memory In Rats, Cisse Nakeyar
Effects Of Caffeine On Memory In Rats, Cisse Nakeyar
2015 Undergraduate Awards
Caffeine is typically used to counter the effects of fatigue by enhancing performance for cognitive tasks, it is also known to suppress appetite. The current study is conducted to determine if caffeine would have an effect on memory. Twenty-four male Long Evans rats (375-425g) were used, they were randomly assigned to one of three groups: saline control (0.9% saline), caffeine low dose (15mg/kg), and caffeine high dose (50mg/kg). Testing was conducted in a Skinner box with a retractable lever that dispensed food when pressed. Rats were trained for five consecutive days for 10-15 min sessions. Then, two days of baseline …