Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Cromwell Relative Reward Striatal Activity.Pdf, Howard C. Cromwell, Emily S. Webber, David E. Mankin Sep 2016

Cromwell Relative Reward Striatal Activity.Pdf, Howard C. Cromwell, Emily S. Webber, David E. Mankin

Howard Casey Cromwell

The striatum is a key brain region involved in reward processing. Striatal activity has been linked to encoding rewardmagnitude and integrating diverse reward outcome information. Recent work has supported the involvement ofstriatum in the valuation of outcomes. The present work extends this idea by examining striatal activity during dynamicshifts in value that include different levels and directions of magnitude disparity. A novel task was used to produce
diverse relative reward effects on a chain of instrumental action. Rats (Rattus norvegicus) were trained to respond to
cues associated with specific outcomes varying by food pellet magnitude. Animals were exposed …


Animal Suffering In China, Peter J. Li Jul 2016

Animal Suffering In China, Peter J. Li

Peter J. Li, PhD

Chinese policy has been aimed at maximizing GDP; it is time to focus also on minimizing animal suffering.


Fish Pain: An Inconvenient Truth, Culum Brown May 2016

Fish Pain: An Inconvenient Truth, Culum Brown

Culum Brown, PhD

Whether fish feel pain is a hot political topic. The consequences of our denial are huge given the billions of fish that are slaughtered annually for human consumption. The economic costs of changing our commercial fishery harvest practices are also likely to be great. Key outlines a structure-function analogy of pain in humans, tries to force that template on the rest of the vertebrate kingdom, and fails. His target article has so far elicited 34 commentaries from scientific experts from a broad range of disciplines; only three of these support his position. The broad consensus from the scientific community is …


Cognitive Evidence Of Fish Sentience, Jonathan Balcombe Apr 2016

Cognitive Evidence Of Fish Sentience, Jonathan Balcombe

Jonathan Balcombe, PhD

I present a little-known example of flexible, opportunistic behavior by a species of fish to undermine Key’s (2016) thesis that fish are unconscious and unable to feel. Lack of a cortex is flimsy grounds for denying pain to fish, for on that criterion we must also then deny it to all non-mammals, including birds, which goes against scientific consensus. Notwithstanding science’s fundamental inability to prove anything, the precautionary principal dictates that we should give the benefit of the doubt to fish, and the state of the oceans dictates that we act on it now.