Behavioral and Brain Sciences
June 2003
J David Smith, Wendy E Shields, David A Washburn
There was a strong consensus in the commentaries that animals' performances in metacognition paradigms indicate high-level decisional processes that cannot be explained associatively. Our response summarizes this consensus and the support for the idea that these performances demonstrate animal metacognition. We amplify the idea that there is an adaptive advantage favoring animals who can - in...
Behavioral and Brain Sciences
June 1, 2002
Joseph Tzelgov
2 citations
In this commentary I show that the SOC framework implies automaticity of both the materialization of phenomenological conscious experience and the application of the primitives resulting from the emergence of consciousness. In addition, SOC implies that cognition refers to conscious experience. Consequently, I propose automatic/nonautomatic instead of unconscious/conscious as the basic contrast...
Behavioral and Brain Sciences
June 1, 2002
Ron Sun
This commentary suggests that there are two distinct types of interacting cognitive processes. Conscious processes emerge from unconscious processes. The key problem of SOC is that it uses an overly narrow notion of the “cognitive unconscious” to show that the “cognitive unconscious” is not necessary. Yet, it has little to say about the roles of conscious and unconscious processes in general.
Behavioral and Brain Sciences
October 1, 2001
Gerard O'Brien, Jon Opie
3 citations
O'Regan & Noë (O&N) fail to address adequately the two most historically important reasons for seeking to explain visual experience in terms of internal representations. They are silent about the apparently inferential nature of perception, and mistaken about the significance of the phenomenology accompanying dreams, hallucinations, and mental imagery.
Behavioral and Brain Sciences
October 1, 2001
Geraint Rees, Chris Frith
O'Regan & Noë (O&N) are pessimistic about the prospects for discovering the neural correlates of consciousness. They argue that there can be no one-to-one correspondence between awareness and patterns of neural activity in the brain, so a project attempting to identify the neural correlates of consciousness is doomed to failure. We believe that this degree of pessimism may be overstated; recent...
Behavioral and Brain Sciences
October 1, 2001
K Oberauer
I argue that O'Regan & Noë's (O&N's) theory is in a no better position than any other theory to solve the "hard problem" of consciousness. Getting rid of the explanatory gap by exchanging sensorimotor contingencies for neural representations is an illusion.
Behavioral and Brain Sciences
February 1, 2001
Bernard J. Baars
20 citations
The limited capacity of immediate memory “rides” on the even more limited capacity of consciousness, which reflects the dynamic activity of the thalamocortical core of the brain. Recent views of the conscious narrow-capacity component of the brain are explored with reference to global workspace theory (Baars 1988; 1993; 1998). The radical limits of immediate memory must be explained in terms of...
Behavioral and Brain Sciences
February 1, 2001
Ian Vine
Gray's account of a brain mechanism for generating the contents of consciousness is incomplete. Adaptive advantages of conscious functioning need to be sought within the first-person affective sensation motivating flexibly goal-directed actions, as in Humphrey's sensory feedback theory.
Behavioral and Brain Sciences
December 1, 2000
Stephen LaBerge
54 citations
Lucid dreaming provides a test case for theories of dreaming. For example, whether or not “loss of self-reflective awareness” is characteristic of dreaming, it is not necessary to dreaming. The fact that lucid dreamers can remember to perform predetermined actions and signal to the laboratory allows them to mark the exact time of particular dream events, allowing experiments to establish...
Behavioral and Brain Sciences
December 1, 2000
Harry T. Hunt
11 citations
The five authors vary in the degree to which the recent neuroscience of the REM state leads them towards multiple dimensions and forms of dreaming consciousness (Hobson et al.; Nielsen; Solms) or toward all-explanatory single factor models (Vertes & Eastman, Revonsuo). The view of the REM state as a prolongation of the orientation response to novelty fits best with the former pluralisms but not...
Behavioral and Brain Sciences
December 1, 2000
Michael Schredl
10 citations
All five target articles are of high quality and very stimulating for the field. Several factors such as dream report length and NREM/REM differences, may be affected by the waking process (transition from sleep to wakefulness) and the recall process. It is helpful to distinguish between a model for REM sleep regulation and a physiological model for dreaming. A third model accounting for...
Behavioral and Brain Sciences
December 1, 2000
Barbara E. Jones
8 citations
Not at all self-evident, the so-called isomorphisms between the phenomenology and physiology of dreams have been interpreted by Hobson et al. in an arbitrary manner to state that dreams are stimulated by chaotic brainstem stimulation (an assumption also adopted by Vertes & Eastman). I argue that this stimulation is not chaotic at all; nor does it occur in the absence of control from the...
Behavioral and Brain Sciences
December 1, 2000
William J. Clancey
5 citations
Information processing theories of memory and skills can be reformulated in terms of how categories are physically and temporally related, a process called conceptual coordination. Dreaming can then be understood as a story-understanding process in which two mechanisms found in everyday comprehension are missing: conceiving sequences (chunking categories in time as a higher-order...
Behavioral and Brain Sciences
April 1, 2000
José Luis Bermúdez
Rolls defends a higher-order thought theory of phenomenal consciousness, mapping the distinction between conscious and non-conscious states onto a distinction between two types of action and corresponding neural pathways. Only one type of action involves higher-order thought and consequently consciousness. This account of consciousness has implausible consequences for the nature of...
Behavioral and Brain Sciences
April 1, 2000
Jordan B. Peterson
Rolls attributes to consciousness the functions of reflection, planning, and error-correction. Neuropsychologically grounded cybernetic theory provides an analogous, broader conceptualization: consciousness constructs goals (and plans), alters the valence of goal-related phenomena, registers error-signals, and explores unexpected circumstances (reconfiguring goals and plans as necessary)....
Behavioral and Brain Sciences
December 1, 1999
S E Palmer
The relations among consciousness, brain behavior, and scientific explanation are explored in the domain of color perception. Current scientific knowledge about color similarity, color composition, dimensional structure, unique colors, and color categories is used to assess Locke's "inverted spectrum argument" about the undetectability of color transformations. A symmetry analysis of color...
Behavioral and Brain Sciences
October 1, 1999
Gerard O'Brien, Jonathan P. Opie
Dienes & Perner offer us a theory of explicit and implicit knowledge that promises to systematise a large and diverse body of research in cognitive psychology. Their advertised strategy is to unpack this distinction in terms of explicit and implicit representation. But when one digs deeper one finds the “Higher-Order Thought” theory of consciousness doing much of the work. This reduces both the...
Behavioral and Brain Sciences
October 1, 1999
Ken Mogi
The privileged position of neural activity in biological neuroscience might be justified on the grounds of the nonlinear and all-or-none character of neural firing. To justify the neuron doctrine in cognitive neuroscience and make it both plausible and radical, we must consider the supervenience of elementary mental properties such as qualia on neural activity.
Behavioral and Brain Sciences
February 1, 1999
Tamás Pólya, László Tarnay
The theory of consciousness proposed by O'Brien & Opie is open to the Sorites paradox, for it defines a consciousness system internally in terms of computationally relevant units which add up to consciousness only if sufficient in number. The Sorites effect applies on the assumed level of features.
Behavioral and Brain Sciences
February 1, 1999
John G. Taylor
The basic postulate that consciousness arises from stable states of recurrent activity is shown to need considerable modification from our current knowledge of the neural networks of the brain. Some of these modifications are outlined.
Behavioral and Brain Sciences
February 1, 1999
Bruce Mangan
O'Brien & Opie's (O&O's) theory demands a view of unconscious processing that is incompatible with virtually all current PDP models of neural activity. Relative to the alternatives, the theory is closer to an AI than a parallel distributed processing (PDP) perspective, and its treatment of phenomenology is ad hoc. It raises at least one important question: Could features of network relaxation...
Behavioral and Brain Sciences
February 1, 1999
G O'Brien, J Opie
When cognitive scientists apply computational theory to the problem of phenomenal consciousness, as many have been doing recently, there are two fundamentally distinct approaches available. Consciousness is to be explained either in terms of the nature of the representational vehicles the brain deploys or in terms of the computational processes defined over these vehicles. We call versions of...
Behavioral and Brain Sciences
December 1, 1998
L Pessoa, Evan Thompson, Alva Noë
435 citations
In visual science the term filling-in is used in different ways, which often leads to confusion. This target article presents a taxonomy of perceptual completion phenomena to organize and clarify theoretical and empirical discussion. Examples of boundary completion (illusory contours) and featural completion (color, brightness, motion, texture, and depth) are examined, and single-cell studies...
Behavioral and Brain Sciences
December 1, 1998
Steven Lehar
2 citations
The Gestalt principle of isomorphism reveals the primacy of subjective experience as a valid source of evidence for the information encoded neurophysiologically. This theory invalidates the abstractionist view that the neurophysiological representation can be of lower dimensionality than the percept to which it gives rise.
Behavioral and Brain Sciences
December 1, 1998
Daniel C. Dennett
Pessoa et al.'s target article shows that although filling-in of various kinds does appear to occur in the brain, it is not required in order to furnish a “bridge locus” where neural events are “isomorphic” to the features of visual consciousness. Some recently uncovered completion phenomena may well play a crucial role in the elaboration of normal visual experience, but others occur too slowly...